Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource

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Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
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        PAINTSQUARE.COM JOURNAL OF PROTECTIVE COATINGS & LININGS

                                            A JPCL eResource

   WASTEWATER TREATMENT PLANT COATING
     SYSTEMS: SELECTING AND SOURCING
©iStockphoto/TerryJ

                                                   © 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
i

Wastewater Treatment
Plant Coating Systems:
Selecting and Sourcing

                         A JPCL eBook

                         Copyright 2014-2015 by
                         Technology Publishing Company
                         2100 Wharton Street, Suite 310
                         Pittsburgh, PA 15203

                         All Rights Reserved

                         This eBook may not be copied or redistributed
                         without the written permission of the publisher.

                                               © 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
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    SPONSORED BY

Contents
iv Introduction

 1 Preparing and Lining Concrete for Immersion Service:
    Steps and Procedures to Avoid Failures
    By Robert Maley, Corrosion Probe, Inc.

10 Coating System Guide for the Wastewater Treatment Plants

23 Coating Company Profiles

                                             © 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
© 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
iv

Introduction
This eBook features an article from the Journal of Protective Coatings & Linings
(JPCL) about avoiding failures when preparing and lining concrete for immersion
service, as well as JPCL Buying Guide data pertaining to selecting and specifying
coatings for wastewater treatment plants. All information about the article and
materials is based on the original dates of publication of these materials in JPCL.

The Buying Guide is organized by various exposure types and substrates. Coating
manufacturers are listed in alphabetical order, with each company’s preferred sys-
tem named in both proprietary and generic terms. Finally, contact details are given
for all the companies.

This collection is designed to provide general guidance on selecting and specify-
ing coatings, as well as furnish information about sources in order to acquire the
appropriate systems. Please visit www.paintsquare.com/bg to refine searches and
apply parameters to Buying Guide data such as industry, exposure, substrate,
company name or product name.

 ©iStockphoto/TerryJ

                                                         © 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
1

                                              All figures and photos courtesy of the author.

Preparing and Lining Concrete for Immersion
Service: Steps and Procedures to Avoid Failure
       he practice of lining concrete substrates has increased expo-                  By Robert Maley,

T                                                                                     Corrosion Probe, Inc.
       nentially over the last 30 years, most notably in the wastewater
       treatment industry. Environmental regulations, coupled with
       changes to treatment processes, have resulted in far more se-
       vere environments in which concrete can and will corrode.                   A lack of understanding and experience extends beyond the con-
  Other than the floor coating field, very few contractors specialize in         tracting level. Many engineers, consultants, and inspectors do not
preparing and lining concrete structures, as carbon steel lining oppor-          fully comprehend the idiosyncrasies of lining concrete. When all the
tunities far outweigh those of concrete substrates. Accordingly, the             aforementioned parties converge upon a complex lining project, the
majority of craft workers, both young and old, have far more training            potential for a perfect storm exists.
and experience preparing and lining steel substrates. It has been the              This article examines many of the common errors that often occur
author’s observation that many of the aforementioned craft workers,              when concrete substrates are rehabilitated and offers practical solu-
and in many cases, management personnel, do not fully comprehend                 tions for prevention of said errors.
the difficulty and distinctions inherent to a concrete lining project.
                                                                                 Chronological Examination of Typical Missteps
                                                                                 Surface Preparation Phase
Editor’s Note: This article is based on a presentation given at SSPC
                                                                                 The majority of lining failures, regardless of the substrate (steel
2013, the annual conference of SSPC: The Society for Protective
Coatings, held January 14–17, 2013, in San Antonio, TX, and is                   or concrete), are often attributed to inadequate surface prepara-
available in the conference Proceedings (sspc.org).                              tion. Numerous written standards and visual standards for
                                                                                                                   © 2014-2015 Technology Publishing Co.
Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
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                                                                                                    is a thin, weak, poorly adhered layer of aggre-
                                                                                                    gate fines, including unreacted concrete con-
                                                                                                    stituents (Fig. 1). Islands of laitance can be
                                                                                                    difficult to detect. If not removed, laitance will
                                                                                                    slowly disintegrate, disbonding the lining sys-
                                                                                                    tem from the substrate.
                                                                                                    • The surface profile is not sufficient. Similar to
                                                                                                    linings applied to carbon steel, linings applied
                                                                                                    to concrete substrates require a surface profile
                                                                                                    to promote mechanical bonding. Surface pro-
Fig. 1: Residual laitance on UHPWJ-prepared concrete (left) and abrasive blast cleaned concrete
All figures and photos courtesy of the author.
                                                                                                    files on steel substrates typically range from
                                                                                                    1.5 to 5.0 mils, depending on the film thickness
                                                                                                    of the lining. Surface profile can be objectively
                                                                                                    quantified in the field by using replica tape and
                                                                                                    a spring micrometer (per ASTM D4417,
                                                                                                    Method C).
                                                                                                    Determining the surface profile of concrete
                                                                                                    substrates is performed by comparison
                                                                                                    method, and therefore can be somewhat sub-
                                                                                                    jective. Molded replica chips (coupons) are
                                                                                                    available from The International Concrete Re-
                                                                          Fig. 2: ICRI CS Coupons   pair Institute (ICRI). The ICRI coupons (Fig. 2)
                                                                                                    depict ten profiles identified as CSP 1 (least
                                                                                                    rough) through CSP 10 (most rough). ICRI
                                                                                                    Technical Guideline 310.2 provides additional
                                                                                                    information relative to the selection and meth-
                                                                                                    ods of achieving the various CSPs.
                                                                                                    ASTM Standard D7682, Standard Test Method
                                                                                                    for Replication of and Measurement of Con-
                                                                                                    crete Surface Profiles Using Replica Putty, re-
                                                                                                    leased in 2010, provides both visual means
                                                                                                    (Method A) and quantitative means (Method
                                                                                                    B) for determining the surface profile of con-

                                                                          Fig. 3: Evaluation of     crete. The benefit of utilizing ASTM D7682
                                                                          surface profile using     over a visually comparative method is that a
                                                                          60 grit sandpaper
                                                                                                    permanent replica can be obtained.
                                                                                                    Many industry standards, including SSPC-SP
preparing steel substrates have been published by various in-                     13/NACE No. 6, Surface Preparation of Concrete, will describe a
dustry organizations over the past 50 years. Steel substrate sur-                 concrete surface profile by comparison to various grades of
face preparation standards, as well as many germane test                          sandpaper, e.g. fine, medium, coarse, and extra-coarse. This
standards, are fairly well understood and routinely cited in proj-                method is also quite subjective because of the lack of uniformity
ect specifications. Conversely, it is quite common for a specifica-               typically found on a prepared concrete surface. Additionally,
tion or a lining material product data sheet to simply state for                  some lining manufacturers’ product data sheets define the re-
the contractor to “roughen or abrade concrete surfaces.” Such                     quired surface profile as similar to coarse sandpaper without
ambiguous language does not suitably address the following                        specifically defining coarse sandpaper (Fig. 3).
often-overlooked critical aspects necessary to properly prepare                   • Voids and bug holes are not opened or exposed. Formed con-
concrete substrates.                                                              crete contains surface voids of varying dimensions, primarily as
• Laitance is not thoroughly removed from the surface. Laitance                   a result of air bubbles that are trapped during placement and
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Jpcl WASTEWATER TREATMENT PLANT COATING SYSTEMS: SELECTING AND SOURCING - A JPCL eResource
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                                                                                                       • Protrusions are not removed from the
                                                                                                       concrete surface. Surface irregularities such
                                                                                                       as form lines, concrete spatter, fins, trowel

 Fig. 4: Cross section of bug holes
                                                                                                       licks, etc., are sometimes well-adhered to
                                                                                                       the substrate and are not conducive to
                                                                                                       achieving a monolithic lining with uniform
                                                                                                       film thickness. These irregularities must be
                                                                                                       removed mechanically by chipping or
                                                                                                       grinding.
                                                                                                       • Residual coating/lining materials are not
                                                                                                       thoroughly removed from the surface. It is
                                                                                                       common to find residual coating material
                                                                                                       embedded in the concrete surface (Fig. 6).
                                                                                                       A thorough visual examination is required
                                                                                                       to identify embedded materials.
                                                                                                       • Surface contamination is not thoroughly
                                                                                                       removed. Generally speaking, contamina-
                                                                                                       tion, which can exist on the concrete sur-
                                                                                                       face following surface preparation, cannot
                                                                                                       be visually identified. Therefore, various
                                                                                                       testing is required subject to the type of
                                                                                                       contaminants anticipated. Typical contami-
Fig. 5: Typical bug holes on formed concrete                                                           nates include chlorides and sulfates. Labo-
                                                                                                       ratory analysis of concrete powder samples
                                                                                                       obtained at various gradient depths should
                                                                                                       be performed if contamination is sus-
                                                                                                       pected.
                                                                                                       • The surface pH is below 9.0. A pH of less
                                                                                                       than 9.0 would suggest the presence of
                                                                                                       acid salts, indicative of active corrosion re-
                                                                                                       actions. The alkaline constituents of the hy-
                                                                                                       drated cement paste binder readily react
                                                                                                       with acidic solutions, resulting in a deple-
                                                                                                       tion of calcium hydroxide (pH < 10.0) and
                                                                                                       depletion of calcium silicate hydrate (pH <
                                                                                                       8.0). Conversely, a pH greater than 12.5
                                                                                                       would suggest that the concrete is too
Fig. 6: Residual lining material (substrate was prepared by UHPWJ followed by abrasive blasting)       green and may not be fully hydrated. ASTM
                                                                                                       D4262, Standard Test Method for pH of
compaction. Bug holes are small, regular or irregular cavities,                  Chemically Cleaned or Etched Concrete Surfaces, provides guid-
usually not exceeding 15 mm (0.6 in.) in diameter, while voids                   ance for testing the pH of concrete surfaces. Gradient pH meas-
can be significantly larger (Figs. 4 and 5).                                     urements should be performed to determine the depth of
  The actual size of a bug hole is often obscured because the                    contamination (Fig. 7).
cavity extends beneath the surface. This condition is often re-
ferred to as “shelled over.” Unless the bug hole is thoroughly                   Restoration/Resurfacing Phase
opened or exposed, the resurfacer or liner will bridge over the                  Prepared concrete substrates, particularly those previously sub-
void, resulting in air entrapment and pinhole formation due to                   jected to harsh exposures, quite often require restoration or re-
outgassing.                                                                      pair prior to application of a chemical resistant lining system.
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                                                                                                      tar is not absorbed into the substrate. An
                                                                                                      SSD condition is typically achieved by lightly
                                                                                                      misting the concrete substrate with clean
                                                                                                      water. Ponding, pooling, glistening, drip-
                                                                                                      ping, or running water is detrimental and
                                                                                                      therefore should be avoided. The objective is
                                                                                                      to slightly darken the surface so as to pre-
                                                                                                      serve the water needed for hydration pur-
                                                                                                      poses. Insufficient water for hydration of the
                                                                                                      restoration/repair mortar may result in crack-
                                                                                                      ing or poor adhesion, which can be exacer-
Fig. 7: pH gradient measurement of concrete prior to surface preparation. The red arrow depicts a
                                                                                                      bated by the curing stresses associated with
surface pH of 7.0–8.0, while the blue arrow depicts a pH of 10.0–11.0 where concrete has been
chipped back approximately 1⁄ 8 of an inch. Contaminated concrete should be removed to a depth        the application of a chemical resistant liner.
where a minimum pH of 9.0 is attained.                                                                • Application conditions are not suitable. As
                                                                                                      is true for any substrate, application parame-
                                                                                                      ters for material temperature, surface tem-
Table 1: Commonly Used Industry Methods and Standards for Testing Adhesion
                                                                                                      perature, air temperature, relative humidity,
          METHOD                 INDUSTRY STANDARD                   LIMITATIONS                      and dew points must be strictly monitored.
 Anhydrous Calcium Chloride            ASTM F 1869            • only for horizontal surfaces          There are two additional application parame-
                                                              • requires a minimum of 60 hours
                                                                                                      ters which are unique to concrete substrates
         Plastic Sheet                 ASTM D 4263           • requires 16 hours                      and are quite often overlooked.
          RH Probes                    ASTM F 2170            • hole must be cored (destructive)         1) Materials should not be applied in di-
      Electronic Meters                    None               • measures at or just below surface     rect sunlight.
                                                                                                         2) Materials should not be applied if the
Additionally, a resurfacing material is recommended to fill bug                                       surface temperature is ascending.
holes and surface porosity on all concrete substrates to provide                   Under both of these conditions, air entrained within the con-
a monolithic surface for lining application. Deficiencies that com-              crete substrate expands as temperatures rise. The air vapor is re-
monly occur during the restoration/resurfacing phase include the                 leased at the surface (known as outgassing) and results in the
following.                                                                       formation of pinholes and craters as the air is expelled through
• The substrate is not thoroughly cleaned of dust and debris. Due                the mortar or lining. Alternatively, if the mortar or lining is capa-
to its inherent porosity, as well as the abundance of bug holes and              ble of resisting the vapor pressure, then blisters will form be-
larger surface voids, prepared concrete surfaces cannot be effec-                neath the mortar or lining.
tively cleaned by blowing them down with compressed air or                       • Post-application curing is not performed. Many cementitious
sweeping. Vacuuming the entire surface followed by pressure                      materials require post-application curing efforts, which typically
washing with clean water (when feasible) are far more effective                  consist of periodically misting or spraying the material with
methods to ensure that residual dust has been thoroughly re-                     clean water, or maintaining a wet cure with fabric or burlap, to
moved.                                                                           insure that sufficient water is available for proper hydration. Cur-
• The substrate is too wet or too dry. Excessive moisture within                 ing efforts may extend several days depending on the ambient
the concrete substrate can be problematic for many reasons,                      conditions.
most notably related to adhesion. Several test methods and in-                   • Cracks and joints are not properly treated. Treatment of cracks
dustry standards can be used to determine substrate acceptabil-                  is dependent on the mechanism that induced the crack, as well
ity. The method or standard selected should be consistent with                   as the anticipated crack movement. If not properly treated cracks
the recommendations provided by the manufacturer of the                          can and will reflect through many lining systems. Construction
restoration/resurfacing material. Table 1 lists some of the most                 joints, expansion joints, contraction, and isolation joints all serve
commonly used industry methods and standards.                                    different purposes and may require different treatment methods.
  Many restoration/repair mortars require that the substrate be                  A detailed discussion of crack and joint treatment is beyond the
surface saturated dry (SSD), meaning that the concrete substrate                 scope of this article and is quite often overlooked during lining
must be dampened to insure that water within the applied mor-                    applications.
                                                                                                                © 2014-2015 Technology Publishing Co.
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                                                                                                            • Substrate moisture content is unsuitable.
                                                                                                            As previously discussed, excessive mois-
                                                                                                            ture is detrimental and must be constantly
                                                                                                            controlled and monitored as conditions
                                                                                                            change.
                                                                                                            • Application conditions are not suitable.
                                                                                                            The discussion contained within the
                                                                                                            restoration/resurfacing phase holds true
                                                                                                            for the lining application phase.
                                                                                                            • Repair/restoration material is not
                                                                                                            abraded. The presence of laitance is highly
                                                                                                            probable when Portland cement-based re-
                                                                                                            pair mortars are used for repair/restora-
                                                                                                            tion. Any laitance must be removed before
                                                                                                            application of the chemical-resistant lining.
                                                                                                            • Materials are improperly stored or mixed.
                                                                                                            Although not previously discussed, many
                                                                                                            failures emanate as a result of inadequate
                                                                                                            storage and mixing practices. Most repair
                                                                                                            and lining materials consist of multiple
                                                                                                            components requiring specific storage and
                                                                                                            application temperatures where heat re-
                                                                                                            places solvent to reduce the materials’ vis-
                                                                                                            cosity. Mixing these materials properly can
                                                                                                            be quite laborious, after which a short (5–
                                                                                                            30 minute) pot life exists for application.

                                                                                                            Testing and Repair Phase
Fig. 8: Example of termination detail where the wall lining was carried onto the floor to prevent           The final phase of a lining project often in-
edge lifting/undercutting. In this example, the floor was not subjected to the same corrosion
mechanisms as the walls and therefore did not warrant lining application.                                   volves performing various tests to verify
                                                                                                            that the work was properly performed and
                                                                                     the materials will ultimately provide the desired long-term pro-
Lining Application Phase                                                             tection. Testing requirements can vary widely depending on the
The lining application phase introduces several typical or com-                      specification, as well as the manufacturers’ requirements, partic-
mon challenges, as well as several challenges unique to con-                         ularly when extended warranties come into play. This article will
crete substrates and lining concrete in immersion service, such                      only address the tests that are common to most projects: dry
as the following.                                                                    film thickness, adhesion, and holiday detection.
• Lining terminations are inadequate or nonexistent. In many cir-
cumstances it is not necessary or cost effective to apply a lining                   Dry Film Thickness Testing
system to an entire structure as the corrosion severity may vary                     Two primary options are available: destructive and non-destruc-
from liquid to vapor phase, or as a result of erosion/abrasion.                      tive. Arguably, destructive testing is the most reliable, albeit
Whenever partial lining is performed a leading edge exists which                     often statistically questionable test method because of the lim-
is susceptible to lifting and undercutting. Wherever possible, it is                 ited number of areas tested. A wide range of film thicknesses
desirable to terminate the lining system above the highest liquid                    should be anticipated, as certain application methods by nature
operating level rather than in the immersed area. The lining sys-                    (i.e., troweling, plural component spray, hopper/gravity fed
tem should always be terminated within a chase or saw cut. Simi-                     spray) and many reinforced thick film lining materials are not
larly, all penetrations and metal embedments require detailed                        conducive to achieving uniform film thickness. Although unfor-
lining terminations typically requiring a chase or saw-cut (Fig. 8).                 tunately not often cited, Table 1 in section 5.4 of SSPC Paint Ap-
                                                                                                                    © 2014-2015 Technology Publishing Co.
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                                                                                                           for concrete) and the requirement to score
                                                                                                           around the loading fixture when film thick-
                                                                                                           ness exceeds 20 mils (concrete).
                                                                                                             Adhesion of a lining to the concrete sub-
                                                                                                           strate as well the intra coat adhesion in multi
                                                                                                           coat systems can be quantified via the ASTM
                                                                                                           D7234 test procedure. Adhesion values can-
                                                                                                           not always be accurately determined when-
                                                                                                           ever cohesive failure of the concrete occurs
                                                                                                           during testing. For example, if the loading fix-
                                                                                                           ture is removed from the concrete substrate
                                                                                                           at 350 psi and the failure plane is within the
                                                                                                           concrete (cohesive failure), one can only con-
                                                                                                           clude that the adhesion of the lining to the
                                                                                                           substrate is a minimum of 350 psi. Should the
                                                                                                           project specification require a minimum ad-
                                                                                                           hesion value of 375 psi, the 350 psi test re-
                                                                                                           sult does not necessarily satisfy the
Fig. 9: Pull-off adhesion testing. 90% of the failure occurred cohesively within the sub-                  specification requirements.
strate, whereas 10% of the failure occurred cohesively within the filler/surfacer.                           Many specifications rely on the lining
                                                                                                           manufacturers’ published data for accept-
plication Specification No. 9, Measurement of Dry Coating Thick-                     able adhesion values regardless of; the tensile strength of the
ness on Cementitious Substrates Using Ultrasonic Gages, pro-                         concrete; the concrete surface profile, or the type of instrument
vides guidance relative to restriction levels of coating thickness                   utilized. The often-utilized requirement of “concrete failure” as a
on concrete. The table contains four levels for minimum and                          benchmark for acceptable adhesion is far too ambiguous, and
maximum film thicknesses for spot readings, which recognize                          not always attainable. As demonstrated in Figure 9, multiple fail-
the wide percentage variations typically observed. More impor-                       ure planes can and will occur on a single test.
tantly, however, the manufacturer should provide guidance rela-                         Heated discussions are commonplace on job sites when adhe-
tive to absolute minimum and maximum film thickness                                  sion testing data does not meet the requirements of the specifi-
tolerances.                                                                          cations. The basis of these discussions is often attributed to one
  Another somewhat reliable method of determining dry film                           or a combination of the following:
thickness is to calculate the material quantities based on the ac-                   • utilizing ASTM D4541 as opposed to ASTM D7234 (often be-
tual surface area. The reliability of this method is dependent on                    cause D4541 data was provided by the manufacturer);
accurately measuring the surface area, determining a realistic                       • varying interpretations of the requirements within ASTM
loss factor for overspray, and carefully monitoring the quantity                     D7234; and
of material actually applied to the substrate, as quantities mixed                   • insufficient test data available from the lining system manufac-
rarely equate to what is actually applied.                                           turer.
                                                                                        If not clearly stated in the project specifications, the test meth-
Adhesion Testing                                                                     ods, test procedures, test equipment, and acceptance criteria
The applicable industry standard for determining pull-off adhesion                   should be clearly established and mutually agreed on before the
strength on concrete is ASTM D7234, Standard Test Method for                         project commences.
Pull-Off Adhesion Strength of Coatings on Concrete Using Portable
Pull-Off Adhesion Testers, although the older and far more familiar                  Holiday Detection
standard for metal, ASTM D4541, Standard Test Method for Pull-                       Holiday Detection can often be the most contentious member of the
Off Strength of Coatings Using Portable Adhesion Testers, is often                   testing triumvirate based upon the following common scenarios.
inadvertently cited. Rather than offering a detailed comparison of                   • No industry standard is referenced in the project specification
the standards, suffice it to say that the two standards are quite dif-               (NACE SPO 188 or ASTM D 4787). Suggested voltage settings
ferent, most notably in the diameter of the loading fixtures (larger                 vary between the two standards.
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7

                                                                                    • No voltage setting is established either in the
                                                                                    project specification or indicated on the manufac-
                                                                                    turers’ published technical data.
                                                                                    • The measured dry film thickness exceeds the speci-
                                                                                    fication requirements, therefore a higher voltage
                                                                                    setting must be utilized.
                                                                                    • An appropriate voltage setting cannot be deter-
                                                                                    mined due to a wide range of dry film thickness
                                                                                    variations that are within acceptable parameters
                                                                                    established by the project specifications, e.g. 100–
                                                                                    125 mils.
                                                                                    • The test is improperly performed—a slow, me-
                                                                                    thodical holiday hunting expedition as opposed to
                                                                                    a 1-foot-per-second sweeping method cited in the
Fig. 10: Repairing holidays. Most specifications do not set a limit for the maxi-   industry standards.
mum number of holidays allowed, either for the entire structure or expressed
                                                                                    • An acceptable amount of holidays is not indicated
as a holiday to substrate area ratio.
                                                                                    in the project specifications.
                                                                                    • A specific quantity/density of holidays, which con-
                                                                                    stitutes rejection of the entire lining system, is not
                                                                                    indicated in the project specifications. Figure 10 de-
                                                                                    picts a relatively small structure where an exces-
                                                                                    sive quantity of holidays were identified and
                                                                                    repaired.

                                                                                    Repairs
                                                                                    Many problems can arise surrounding repairs, par-
                                                                                    ticularly when the identified repair areas are mini-
                                                                                    mal. The project dynamics are typically such that
                                                                                    the contractor has done a good job, a few minor re-
                                                                                    pairs (holidays and damage from adhesion testing)
                                                                                    are required, and all parties are anxious to wrap
                                                                                    things up. Strict attention to detail is often lost at
                                                                                    this juncture, including the following.
                                                                                    • Holidays are not thoroughly exposed back to the
                                                                                    substrate, but are merely covered with a dab of lin-
                                                                                    ing material, which essentially masks the holiday
                                                                                    or results in reoccurrence of the same holiday (Fig.
                                                                                    11).
                                                                                    • The specified dry film thickness is not achieved
                                                                                    over the repaired areas. Many linings are systems
                                                                                    comprised of multiple applications of differing ma-
                                                                                    terials, or the linings require spray application to
                                                                                    achieve the specified dry film thickness. Once
                                                                                    again, the common practice is simply to dab a
                                                                                    small amount of the finish coat over the repaired
                                                                                    area. For example, if the specified liner thickness
                                                                                    was 125 mils, then it is quite likely that numerous
Fig. 11: Before (top) and after (bottom) of an improperly repaired holiday          areas would end up with about 10–20 mils of pro-
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                                                                                              warranties protect their interests, but owners
                                                                                              might also fail to consider the negative con-
                                                                                              sequences associated with lining failures.
                                                                                                      The ideal solution for avoiding lining
                                                                                              failures, albeit not a panacea, is to anticipate
                                                                                              potential pitfalls by developing succinct writ-
                                                                                              ten instructions for the work processes, spe-
                                                                                              cific remedies relative to deficiencies, and
                                                                                              quality control measures to be incorporated
                                                                                              throughout all work phases—a.k.a., a Techni-
                                                                                              cal Specification, and competent third party
                                                                                              inspection.

                                                                                              Design Phase Considerations
                                                                                              A comprehensive technical specification with
                                                                                              explicit inspection hold points and well de-
                                                                                              fined acceptance criteria is the foundation for
                                                                                              achieving a successful lining project. Unfor-
                                                                                              tunately, many specifications are recycled
                                                                                              from purportedly similar projects, and there-
                                                                                              fore, they fail to address many critical items.
Fig. 12: Off-ratio repair material found during anniversary inspection                        When critical items are overlooked, one of
                                                                                              two consequences can occur. Either the lin-
tection, considerably less than the thickness required to achieve        ing project continues, resulting in a high likelihood of premature
the desired protection and/or durability of the lining system.           lining failure, or costly change orders to rectify specification re-
• The repair material extends beyond the area that was prepared.         lated deficiencies are issued.
Most lining materials have very short recoat windows, and                  Many common missteps have been discussed above, and they
therefore, require scarification as well as solvent cleaning to en-      merit further exploration for inclusion within technical specifica-
sure that the repair material will adhere to the existing liner. Re-     tions. Additional items for consideration include the following.
pair materials that extend beyond the prepared area will likely          • The potential for hydraulic pressure exists when structures are
disbond, thereby jeopardizing the entire repair, as edge lifting         fully or partially below grade. Quite often it is advisable to water-
and undercutting may occur.                                              proof the exterior of the structure to minimize or eliminate vapor
• Repair materials are often improperly mixed (off-ratio) (Fig. 12).     pressure.
Most contractors shudder at the thought of mixing up a five-gal-         • Concise surface preparation methods should be given (i.e.,
lon unit when only a few ounces of material are needed. Regard-          abrasive blasting, ultra-high-pressure water jetting, or other me-
less of the techniques that are employed, the potential for poorly       chanical means). Many product data sheets and application
mixed or off-ratio material is immense. A paint stick and a plastic      guides simply reference SSPC-SP 13/NACE No. 6 as a surface
quart container are no match for a mixing drill and an appropri-         preparation standard, but they fail to identify a specific method
ately sized metal pail.                                                  as required by the standard. In many cases, it is mistakenly as-
                                                                         sumed that abrasive blasting will be performed.
Finger Pointing or Avoidance                                             • Methods as well as requirements for controlling environmental
Now that we have established where, when, and how problems               conditions suitable for lining application should be identified
can occur, what are the best ways to avoid them? Should the              (e.g., heating, cooling, dehumidification, and shading).
burden of quality control be placed on the application contrac-          • It is important that a distinction be made between concrete
tor? Possibly, but I don’t recommend it. Nonconformities that            restoration (repair) and resurfacing. Restoration should be used
may be dismissed as minor or inconsequential can often result            where large voids exist, erosion/chemical damage has occurred,
in catastrophic failures.                                                and cement paste loss has exceeded a depth of ½-inch. Properly
  Some owners have the mindset that sureties and extended                finished new concrete should not require restoration or repair.
                                                                                                          © 2014-2015 Technology Publishing Co.
9

Restoration/repair materials are generally Portland cement-                Finally, as is often stated, a comprehensive specification,
based mortars and require post-application curing efforts.               which delineates appropriate materials, proper surface prepara-
  Resurfacing is typically used to fill bug holes, seal pores and        tion, precise application requirements, and rigorous quality con-
capillaries, and provide a smooth surface for coating and lining         trol practices are critical.
application. Resurfacing materials can be Portland cement-
based, polymer/epoxy-modified cementitious, or pure epoxy-               About the Author
based materials.                                                                                         Robert Maley is the Coatings
  As previously stated, additional surface preparation require-                                          Group Manager and a Senior Con-
ments may be necessary dependent on the restoration, repair, or                                          sultant based in Pompano Beach,
resurfacing materials that are specified. Recoat windows may                                             FL, for Corrosion Probe, Inc. He
also need to be addressed.                                                                               has more than 37 years of experi-
  A primer/sealer can be used to minimize outgassing. A com-                                             ence in the protective coatings in-
patible primer/sealer should be applied whenever a full skim or                                          dustry. Maley is an SSPC-certified
sparge coat of resurfacing material is not specified, or in addi-                                        Protective Coatings Specialist; an
tion to the restoration/resurfacing materials.                                                           SSPC Concrete Coatings Inspec-
  Visual acceptance criteria should be given. Many high-perfor-                                          tor; an SSPC member who sits on
mance, thick-film lining systems are difficult to apply and are                                          several committees; and a former
susceptible to running, sagging, and orange peeling. Restrictive         SSPC-C3 instructor. He is also a NACE Level III-certified Coatings
language relative to aesthetic qualities should be limited to de-        Inspector and a member of NACE. He has written and presented
fects that jeopardize the film quality and integrity.                    papers for JPCL, SSPC, American Painting Contractor, AWWA,
  Define the acceptance values, locations, and quantities of tests       and Canadian Construction Journal. JPCL
to be performed. Avoid relying solely on an industry standard or
manufacturers’ product data sheets because both can be subject
to interpretation, or if used together, may be contradictory.
  Regardless of whether or not the lining manufacturer requires
specific training/certification of its applicators, onsite training by
the manufacturer should be encouraged. Manufacturer involve-
ment should be additionally extended to include participation in
hold-point inspections, including testing and final inspection.

Conclusion
Lining failures on concrete substrates can be attributed to a
plethora of causes—some obvious, such as inadequate surface
preparation, and some obscure, such as moisture vapor trans-
mission. In many regards, the surface preparation and subse-
quent application of high-performance linings on concrete
substrates is a relatively adolescent industry. Tools, equipment,
methods, and practices are continually being developed to in-
crease the efficiency and productivity of surface preparation and
lining application. Restoration materials, resurfacers, and chemi-
cal-resistant linings require manufacturer training, specialized
skills, and application equipment, which might not be common
knowledge to the average painter. Quality assurance processes
and quality control measures for concrete substrates must be
developed and implemented in greater detail as compared to
other substrates.

                                                                                                        © 2014-2015 Technology Publishing Co.
10

SPONSORED BY

                                                     Coating System Guide for
                                                     Wastewater Plants, Municipal
Listings are alphabetized by company name.
                                                     Denso North America                                         HJ3 Composite Technologies
Exterior Weathering, UV,                               Denso                                                       HJ3 CarbonSeal Industrial Systems
                                                       Tape Wraps                                                  Epoxy/Epoxy Novolac/Epoxy Novolac
and Mild Chemical
Steel                                                Devoe HPC (International Paint, LLC)                        Hy-Tech Thermal Solutions
                                                       Devoe High Performance Coatings                             Metal Shield
                                                       Epoxy (1-2 coats)/Urethane                                  Calcium Sulphonate
ABRI Industries                                      Diamond Vogel Paint Company                                 Induron Coatings, Inc.
  IronBond 111                                          Iron Prime 600/Finium DTM-AT                                Indurethane 6600 Plus
  Inorganic Zinc/Epoxy/Urethane                         Alkyd/Acrylic/Acrylic                                       Epoxy (1-2 coats)/Urethane
Altex Coatings Ltd.                                  Dunn-Edwards                                                Industrial Coatings & Sealants
   Carboline                                           Multiple brand options                                       Polycoat
   Organic Zinc/Epoxy/Urethane                         Epoxy (1-2 coats)/Urethane                                   Polyurea Hybrid (1, 2, or 3 coats)
Arma Coatings                                        Duromar, Inc.                                               Industrial Nanotech, Inc.
  Arma 901 Polyurea & Polyasphartic 6000               HPL-1110 / HPL-1110                                          Nansulate PT
  Polyurea Pure (1, 2, or 3 coats)                     Epoxy 100% Solids (1 or 2 coats)                             Thermal Spray
Atlas Minerals & Chemicals, Inc.                     EA Wilcox                                                   International Paint, LLC
   Rezklad                                             Wasser                                                       International
   Epoxy 100% Solids (1 or 2 coats)                    MCU Zinc Rich/MCU/MCU                                        Epoxy/Epoxy/Siloxane
Avilion, Inc.                                        ENECON Corporation                                          International Polyurethane Systems
   PPG                                                 Chemclad                                                     AL6000
   Epoxy (1-2 coats)/Urethane                          Epoxy/Epoxy 100% solids                                      Polyurea Pure (1, 2, or 3 coats)
Benjamin Moore & Co.                                 ErgonArmor Novocoat                                         Isolatek International
  Corotech Aliphatic Acrylic Urethane Coating V500      Novocoat RI80                                               Fendolite M-II
  Other                                                 Epoxy/Epoxy 100% solids                                     Thermal Spray
Blome International/Part of the HEMPEL Group         Euclid Chemical Company                                     ITW Polymers Coatings North America
   Versi-Line                                          Eucothane                                                   AS-250
   Epoxy 100% Solids (1 or 2 coats)                    Urethane/Urethane                                           Epoxy/Epoxy/Epoxy
Bowers Industrial                                    FSC Coatings, Inc.                                          Jotun Paints, Inc.
  Gulf Coast Paint                                     Rustop/Silicone Poly Plus                                    Resist 86 AV/Penguard Express/Hardtop Optima
  Epoxy (1-2 coats)/Urethane                           Epoxy (1-2 coats)/Urethane                                   Inorganic Zinc/Epoxy/Siloxane
CANUSA-CPS                                           Gemite Products, Inc.                                       Kaufman Products, Inc.
  Wrapid Bond                                          Gem-Cote EP 100                                             SurePoxy HiBild
  Tape Wraps                                           Epoxy 100% Solids (1 or 2 coats)                            Epoxy 100% Solids (1 or 2 coats)
Carboline Company                                    Global EcoTechnologies                                      KCC Corrosion Control Co., Ltd.
  Carboxane                                             Endura-Flex                                                Techni-Plus UR-5
  Organic Zinc/Siloxane                                 Urethane Elastomeric (1 coat)                              Urethane/Urethane
CIM Industries                                       Goodwest Linings and Coatings                               Kopak Industries
  CIM                                                  Carboline, Sherwin-Williams, Devoe                          Kopak
  Urethane Elastomeric (1 coat)                        Organic Zinc/Epoxy/Urethane                                 Epoxy (1-2 coats)/Fluorourethane
Cloverdale Paint, Inc.                               Grace Distributing                                          Linabond
   Armourshield                                        LifeGuard Active Rust Primer                                 SP Mastic Sys, Structural Polymer Sys, Simulform
   Epoxy (1-2 coats)/Urethane                          Other                                                        Sheet Lining, Thermoplastic
Corotech High Performance Coatings                   Gulf Coast Paint Mfg., Inc.                                 Micor Company, Inc.
  Corotech                                             GCP                                                         Micorthane 6-23
  Organic Zinc/Epoxy/Urethane                          Epoxy (1-2 coats)/Urethane                                  Urethane/Urethane
Corrocoat USA, Inc.                                  Heresite Protective Coatings, LLC                           Monopole, Inc.
  Corroglass                                           CSE-6200/UC-5500                                            Permashield 200
  Vinyl Ester/Vinyl Ester/Vinyl Ester                  Epoxy (1-2 coats)/Urethane                                  Urethane/Urethane
CSL Silicones, Inc.                                  Highland International, Inc.                                Northern Industries, Inc.
  Si-Coat 580                                           475R Dry-Fall Epoxy Prime/68R Series Dry-Fall Urethane     Hydro-Seal 75
  Siloxane/Siloxane                                     Epoxy (1-2 coats)/Urethane                                 Epoxy Novolac (1 or 2 coats)

                                                                                                                              © 2014-2015 Technology Publishing Co.
11

Wastewater Plants                                       SPONSORED BY

Nukote Coating Systems Canada, Inc.              Simpson Strong-Tie                                Altex Coatings Ltd.
  Nukote                                            FX-501M Elastomeric                               Carboline
  Polyurea Pure (1, 2, or 3 coats)                  Other                                             Epoxy (1-2 coats)/Urethane
Nukote Coating Systems International             Specialty Products, Inc. (SPI)                    Andek Corporation
  Nukote PA II                                     Polyshield HT, Polyshield HT-100F UB, CAP 100     Encapsall Super
  Polyurea Pure (1, 2, or 3 coats)                 Polyurea Pure (1, 2, or 3 coats)                  Urethane/Urethane
Oak Ridge Chemical and Equipment                 Stirling Lloyd Group Plc.                         Arizona Polymer Flooring, Inc.
  Oak Ridge                                         Integritank                                       Poly 100 VOC
  Polyurea Pure (1, 2, or 3 coats)                  Methyl Methacrylate/Methyl Methacrylate           Epoxy (1-2 coats)/Urethane
Peerless Industrial Systems                      Stirling Lloyd Products, Inc.                     Arma Coatings
  Epigen                                            Integritank                                      Arma 6000 Polyurea
  Epoxy 100% Solids (1 or 2 coats)                  Methyl Methacrylate/Methyl Methacrylate          Polyurea Pure (1, 2, or 3 coats)
Polibrid Coatings, Inc.                          Termarust Technologies                            Atlas Minerals & Chemicals, Inc.
  Polibrid 705                                      Termarust TR2000 HR CSA Series                    Rezklad
  Urethane Elastomeric (1 coat)                     Calcium Sulphonate                                Epoxy/Epoxy/Epoxy
Polycoat Products                                Tesla NanoCoatings, Inc.                          Avilion, Inc.
  Polyeuro 5502/7502                                Teslan                                            PPG
  Polyurea Pure (1, 2, or 3 coats)                  Organic Zinc/Epoxy/Urethane                       Epoxy (1-2 coats)/Urethane
PPC Coatings (MTR)                               Thermion                                          Benjamin Moore & Co.
  PPC Coatings                                     Thermion                                          Corotech Aliphatic Acrylic Urethane Ctg V500
  Other                                            Thermal Spray                                     Other
PPG Protective & Marine Coatings                 Thin Film Technology, Inc.                        Blome International/Part of the HEMPEL Group
  Amercoat                                          Bio-Dur 568                                       Versi-Line
  Epoxy (1-2 coats)/Urethane                        Epoxy 100% Solids (1 or 2 coats)                  Epoxy 100% Solids (1 or 2 coats)
Premier Coating Systems, Inc.                    The Thortex Group                                 Bowers Industrial
   PCS-#1100/PCS-#4300                             Corro-Tech                                        Duromar
   Other                                           Other                                             Epoxy/Epoxy 100% Solids
Protective Floor and Linings Div. Milamar Ctgs   3M Corrosion Protection Products                  Carboline Company
   Fibercoat 1410CS                                Scotchkote                                        Carboguard
   Epoxy (1-2 coats)/Urethane                      Epoxy (1-2 coats)/Urethane                        Epoxy/Epoxy/Epoxy
Protecto Wrap Company                            TMS Metalizing Systems, Ltd.                      ChemMasters, Inc.
   Protecto Liner 1350                             TMS Metalizing Systems                            Duraguard 400 Series
   Urethane/Urethane                               Thermal Spray                                     Methyl Methacrylate/Methyl Methacrylate/Urethane
Randolph Products                                Tnemec Company, Inc.                              CIM Industries
  Randogrip 75                                     Hi-Build Epoxoline/Endura-Shield                  CIM
  Other                                            Epoxy (1-2 coats)/Urethane                        Urethane Elastomeric (1 coat)
Raven Lining Systems                             U.S. Coatings, LLC                                Concrete Solutions Products by Rhino Linings
  Raven Lining Systems                              EpoxyGrip/UreGrip                                Concrete Solutions Epoxy 200
  Epoxy 100% Solids (1 or 2 coats)                  Epoxy (1-2 coats)/Urethane                       Epoxy/Epoxy 100% solids
Rhino Linings Corporation                        VersaFlex Incorporated                            Convenience Products/Seal-Krete
  Rhino SolarMax                                    FSS 50 DM                                        Seal-Krete Dura-Shell WB
  Urethane/Urethane                                 Polyurea Pure (1, 2, or 3 coats)                 Urethane/Urethane
Rodda Paint Co./Cloverdale Paint                 Wasser Corporation                                Copps Industries, Inc.
  ClovaMastic/Armourshield XP                      Wasser                                            Armorgard 700UV
  Epoxy (1-2 coats)/Urethane                       MCU Zinc Rich/MCU/MCU                             Epoxy/Epoxy 100% Solids
Roval USA Corp.                                  Watson Coatings, Inc.                             Corotech High Performance Coatings
  Roval R22 Cold Galvanizing Compound              Aqua-Shield                                       Corotech
  Zinc-rich, organic                               Alkyd/Acrylic/Acrylic                             Epoxy (1-2 coats)/Urethane
Rust Bullet, LLC                                 Wilko Paint, Inc.                                 Corrocoat USA, Inc.
  Rust Bullet Standard                              Wilko                                            Polyglass Zipcoat
  Other                                             Organic Zinc/Epoxy/Urethane                      Urethane/Urethane
Sauereisen, Inc.                                 ZRC Worldwide                                     Crossfield Products Corp.
  Sauereisen                                       ZRC-221 Cold Galvanizing Compound                 Dex-O-Tex
  Epoxy 100% Solids (1 or 2 coats)                 Zinc-Rich, Organic                                Epoxy (1-2 coats)/Urethane
Seacoat Technology                                                                                 CSL Silicones, Inc.
  Fluoro-Slik                                                                                        Si-Coat 580
  Epoxy/Epoxy/Siloxane                           Exterior Weathering, UV                             Siloxane/Siloxane
                                                 and Mild Chemical                                 Denso North America
                                                 Concrete                                            Denso
                                                                                                     Tape Wraps
                                                                                                   Devoe HPC (International Paint, LLC)
                                                 ABRI Industries                                     Devoe High Performance Coatings
                                                   MicroBond 87                                      Epoxy (1-2 coats)/Urethane
                                                   Inorganic Zinc/Epoxy/Urethane
                                                                                                   Diamond Vogel Paint Company
                                                 AcryliCon Flooring Solutions                         Vers-Acryl 200/Vers-Acryl 222
                                                   AcryliCon Decor                                    Other
Sherwin-Williams                                   Other
                                                                                                   Dunn-Edwards
  Macropoxy 646/Hi-Solids Polyurethane           Advanced Chemical Technologies, Inc.                Multiple Brand Options
  Epoxy (1-2 coats)/Urethane                       SIL-ACT                                           Epoxy/Epoxy/Siloxane
                                                   Siloxane/Siloxane

                                                                                                           © 2014-2015 Technology Publishing Co.
12

      SPONSORED BY                                                                                                Wastewater Plants

Duromar, Inc.                                  Kopak Industries                                      Rock-Tred Corporation
  HPL-1110/HPL-1110                              Kopak                                                 Chem-Thane P-100
  Epoxy 100% Solids (1 or 2 coats)               Epoxy (1-2 coats)/Fluorourethane                      Polyurea Hybrid (1, 2, or 3 coats)
EA Wilcox                                      Kryton International, Inc.                            Rodda Paint Co./Cloverdale Paint
  Wasser                                         Krystol T1, Krystol T2                                ClovaMastic/Armourshield XP
  MCU/MCU/MCU                                    Other                                                 Epoxy (1-2 coats)/Urethane
ENECON Corporation                             Linabond                                              Rust Bullet, LLC
  Chemclad                                        SP Mastic Sys, Structural Polymer Sys, Simulform     Rust Bullet Standard
  Epoxy/Epoxy 100% solids                         Sheet Lining, Thermoplastic                          Other
Euclid Chemical Company                        Micor Company, Inc.                                   Sauereisen, Inc.
  Tammscoat                                      Micorthane 6-23                                       Sauereisen
  Alkyd/Acrylic/Acrylic                          Urethane/Urethane                                     Epoxy 100% Solids (1 or 2 coats)
FSC Coatings, Inc.                             Milamar Coatings, LLC                                 Seacoat Technology
  Bio-Safe Prime & Seal/MaxLife                   ICO Guard Coating                                    Fluoro-Slik
  Alkyd/Acrylic/Acrylic                           Epoxy (1-2 coats)/Urethane                           Epoxy/Epoxy/Siloxane
Gemite Products, Inc.                          Monopole, Inc.
  Cem-Kote ST                                    Permashield 200
  Other                                          Urethane/Urethane
Global EcoTechnologies                         National Polymers, Inc.
   Endura-Flex                                   Private Label
   Urethane Elastomeric (1 coat)                 Epoxy (1-2 coats)/Urethane
Grace Distributing                             Northern Industries, Inc.
  LifeGuard Active Rust Primer                   NI-21
  Other                                          Epoxy/Epoxy/Epoxy
                                                                                                     Sherwin-Williams
Gulf Coast Paint Mfg., Inc.                    Nukote Coating Systems Canada, Inc.
                                                                                                       Macropoxy 646 / Hi-Solids Polyurethane
  GCP                                            Nukote
                                                                                                       Epoxy (1-2 coats)/Urethane
  Epoxy (1-2 coats)/Urethane                     Polyurea Pure (1, 2, or 3 coats)
                                                                                                     Simpson Strong-Tie
Heresite Protective Coatings, LLC              Nukote Coating Systems International
                                                                                                        (FX-480) / (FX-505) Protective Ctg.
  CSE-6200/UC-5500                               Nukote PA II
                                                                                                        Epoxy (1-2 coats)/Acrylic (1-2 coats)
  Epoxy (1-2 coats)/Urethane                     Polyurea Pure (1, 2, or 3 coats)
                                                                                                     Soprema, Inc.
HJ3 Composite Technologies                     Oak Ridge Chemical and Equipment
                                                                                                       Soprema Alsan Trafik
  HJ3 CarbonSeal Industrial Systems              Oak Ridge
                                                                                                       Urethane/Urethane
  Epoxy/Epoxy Novolac/Epoxy Novolac              Polyurea Pure (1, 2, or 3 coats)
                                                                                                     Specialty Products, Inc. (SPI)
Hy-Tech Thermal Solutions                      Peerless Industrial Systems
                                                                                                       Aquaseal Hi-Rise X3, Polyshield HT, AMP 100
  Insul-Flex                                     Epigen
                                                                                                       Polyurea Pure (1, 2, or 3 coats)
  Other                                          Epoxy/Epoxy 100% Solids
                                                                                                     Stirling Lloyd Group Plc.
Induron Coatings, Inc.                         Polibrid Coatings, Inc.
                                                                                                        Integritank
   Indurethane 6600 Plus                         Polibrid 705
                                                                                                        Methyl Methacrylate/Methyl Methacrylate
   Epoxy (1-2 coats)/Urethane                    Urethane Elastomeric (1 coat)
                                                                                                     Stirling Lloyd Products, Inc.
Industrial Coatings & Sealants                 Polycoat Products
                                                                                                        Integritank
   Polycoat                                      Polyeuro 5502/7502
                                                                                                        Methyl Methacrylate/Methyl Methacrylate
   Polyurea Hybrid (1, 2, or 3 coats)            Polyurea Pure (1, 2, or 3 coats)
                                                                                                     Termarust Technologies
Industrial Nanotech, Inc.                      PPC Coatings (MTR)
                                                                                                        Termaflex TX4000 series
   Nansulate GP                                  PPC Coatings
                                                                                                        Other
   Thermal Spray                                 Other
                                                                                                     Thin Film Technology, Inc.
International Paint, LLC                       PPG Protective & Marine Coatings
                                                                                                        Bio-Gard 288/561
   International                                 Amercoat
                                                                                                        Epoxy (1-2 coats)/Acrylic (1-2 coats)
   Epoxy (1-2 coats)/Urethane                    Epoxy (1-2 coats)/Urethane
                                                                                                     The Thortex Group
International Polyurethane Systems             Premier Coating Systems, Inc.
                                                                                                       Chemi-Tech
   AL6000                                         PCS-#1100/PCS-#4300
                                                                                                       Epoxy 100% Solids (1 or 2 coats)
   Polyurea Pure (1, 2, or 3 coats)               Other
                                                                                                     3M Corrosion Protection Products
ITW Polymers Coatings North America            Protective Floor and Linings Div. Milamar Ctgs
                                                                                                       Scotchkote
  AS-250                                          PF&L 3300FS
                                                                                                       Epoxy (1-2 coats)/Urethane
  Epoxy/Epoxy/Epoxy                               Epoxy/Epoxy/Epoxy
                                                                                                     Tnemec Company, Inc.
Jotun Paints, Inc.                             Protecto Wrap Company
                                                                                                       Hi-Build Epoxoline/Endura-Shield
   Pen-O-Prep/Penguard Express/Hardtop II HS      Protecto Liner 1350
                                                                                                       Epoxy (1-2 coats)/Urethane
   Epoxy (1-2 coats)/Urethane                     Urethane/Urethane
                                                                                                     Tuf Top Coatings
Kaufman Products, Inc.                         Rainguard International
                                                                                                        Tuf-Top
  SurePoxy HiBild                                Rainguard
                                                                                                        Epoxy (1-2 coats)/Urethane
  Epoxy 100% Solids (1 or 2 coats)               Siloxane/Siloxane
                                                                                                     U.S. Coatings, LLC
KCC Corrosion Control Co., Ltd.                Randolph Products
                                                                                                        EpoxyGrip/UreGrip
  Techni-Plus UR-5                               Randogrip 75
                                                                                                        Epoxy (1-2 coats)/Urethane
  Urethane/Urethane                              Other
                                                                                                     VersaFlex Incorporated
Key Resin Company                              Raven Lining Systems
                                                                                                        FSS 45 DC-F
  Plasti-Chemie                                  Raven Lining Systems
                                                                                                        Polyurea Pure (1, 2, or 3 coats)
  Methyl Methacrylate/Methyl Methacrylate        Epoxy 100% Solids (1 or 2 coats)
                                               Rhino Linings Corporation
                                                 Rhino SolarMax
                                                 Urethane/Urethane

                                                                                                              © 2014-2015 Technology Publishing Co.
13

Wastewater Plants                                       SPONSORED BY

Wasser Corporation                               Denso North America                        KEMA Coatings LImited
  Wasser                                           Denso                                      KEMA
  MCU/MCU/MCU                                      Tape Wraps                                 Epoxy Novolac (1 or 2 coats)
Watson Coatings, Inc.                            Devoe HPC (International Paint, LLC)       Kopak Industries
  Armorex                                          Devoe High Performance Coatings            Kopak
  Epoxy (1-2 coats)/Urethane                       Epoxy/Epoxy/Epoxy                          Epoxy Coal Tar High Build (1 or 2 coats)
Wilko Paint, Inc.                                Diamond Vogel Paint Company                Linabond
   Wilko                                            Iron Prime 600/Vers-Acryl 222              SP Mastic Sys, Structural Polymer Sys, Simulform
   Epoxy (1-2 coats)/Urethane                       Alkyd/Acrylic/Acrylic                      Sheet Lining, Thermoplastic
                                                 The Dow Chemical Company                   Micor Company, Inc.
                                                   Vorastar                                   Micorox 1882
Interior Exposure                                  Polyurea Hybrid (1, 2, or 3 coats)         Epoxy 100% Solids (1 or 2 coats)
Environment                                      Dunn-Edwards                               National Polymers, Inc.
Steel                                              Multiple Brand Options                     Private Label
                                                   Epoxy/Epoxy/Epoxy                          Epoxy (1-2 coats)/Urethane
                                                 Duromar, Inc.                              NSP Specialty Products
ABRI Industries                                    HPL-1110/HPL-1110                          NSP-120 High Performance Epoxy Coating
  IronBond 111                                     Epoxy 100% Solids (1 or 2 coats)           Epoxy 100% Solids (1 or 2 coats)
  Inorganic Zinc/Epoxy/Urethane
                                                 EA Wilcox                                  Nukote Coating Systems Canada, Inc.
Altex Coatings Ltd.                                Wasser                                     Nukote
   Carboline                                       MCU Zinc Rich/MCU/MCU                      Polyurea Pure (1, 2, or 3 coats)
   Epoxy (1-2 coats)/Urethane
                                                 ENECON Corporation                         Nukote Coating Systems International
AmTech Tank Lining & Tank Repair                   Chemclad                                   Nukote Chemshield
  DuraChem 580                                     Epoxy 100% Solids (1 or 2 coats)           Other
  Polyurea Hybrid (1, 2, or 3 coats)
                                                 FSC Coatings, Inc.                         Oak Ridge Chemical and Equipment
ARC Composites, Div. of A.W. Chesterton            Rustop/SP-X Silicone Poly Plus             Oak Ridge
  ARC S1                                           Epoxy (1-2 coats)/Urethane                 Urethane/Urethane
  Epoxy 100% Solids (1 or 2 coats)
                                                 Gemite Products, Inc.                      Peerless Industrial Systems
Arma Coatings                                      Gem-Cote EP 100                            Epigen
  Arma 6000 Polyurea                               Epoxy 100% Solids (1 or 2 coats)           Epoxy 100% Solids (1 or 2 coats)
  Polyurea Pure (1, 2, or 3 coats)
                                                 Global EcoTechnologies                     Polibrid Coatings, Inc.
Atlas Minerals & Chemicals, Inc.                    Endura-Flex                               Polibrid 705
   Chempruf                                         Urethane Elastomeric (1 coat)             Urethane Elastomeric (1 coat)
   Epoxy/Epoxy Flake Filled/Epoxy Flake Filled
                                                 Grace Distributing                         Polycoat Products
Avilion, Inc.                                      LifeGuard Active Rust Primer               Polyeuro 5502
   PPG                                             Other                                      Polyurea Pure (1, 2, or 3 coats)
   Epoxy/Epoxy/Epoxy
                                                 Gulf Coast Paint Mfg., Inc.                PPC Coatings (MTR)
Axalta Coating Systems, North America              GCP                                        PPC Coatings
  Nap-Gard                                         Epoxy/Epoxy/Epoxy                          Other
  Fusion-Bonded Epoxy (1-2 coats)
                                                 Heresite Protective Coatings, LLC          PPG Protective & Marine Coatings
Benjamin Moore & Co.                               Heresite CSE-6200                          Amercoat
  Corotech Polyamide Epoxy Coating V400            Epoxy/Epoxy/Epoxy                          Epoxy (1-2 coats)/Acrylic (1-2 coats)
  Epoxy/Epoxy/Epoxy
                                                 HJ3 Composite Technologies                 Premier Coating Systems, Inc.
Blome International/Part of the HEMPEL Group       HJ3 CarbonSeal Industrial Systems           PCS-#1100/PCS-#4300
   Versi-Line                                      Epoxy/Epoxy Novolac/Epoxy Novolac           Other
   Epoxy 100% Solids (1 or 2 coats)
                                                 Induron Coatings, Inc.                     Protective Floor and Linings Div. Milamar Ctgs
Bowers Industrial                                   Perma-Clean II                             PF&L 1550HD
  Duromar                                           Epoxy/Epoxy/Epoxy                          Epoxy/Epoxy 100% Solids
  Epoxy 100% Solids (1 or 2 coats)
                                                 Industrial Nanotech, Inc.                  Randolph Products
CANUSA-CPS                                          Nansulate PT                              Randogrip Navy G
  Wrapid Bond                                       Thermal Spray                             Other
  Tape Wraps
                                                 International Paint, LLC                   Raven Lining Systems
Carboline Company                                   Ceilcote                                  Raven Lining Systems
  Carboguard                                        Epoxy Flake Filled/Epoxy Flake Filled     Epoxy 100% Solids (1 or 2 coats)
  Epoxy/Epoxy/Epoxy
                                                 International Polyurethane Systems         REMA Corrosion Control, Inc.
CCI Con-Tech of California, Inc.                    SBR3002                                   Corogard
  Hydro-Pox                                         Polyurea Hybrid (1, 2, or 3 coats)        Epoxy 100% Solids (1 or 2 coats)
  Epoxy/Epoxy 100% Solids
                                                 Isolatek International                     Rhino Linings Corporation
Ceilcote (International Paint, LLC)                 Fendolite M-II                            Rhino Extreme
  Ceilcote/ Flakeline                               Thermal Spray                             Polyurea Pure (1, 2, or 3 coats)
  Epoxy/Epoxy Flake Filled/Epoxy Flake Filled
                                                 ITW Polymers Coatings North America        Rodda Paint Co./Cloverdale Paint
CIM Industries                                     AS-175                                     ClovaMastic
  CIM                                              Epoxy/Epoxy/Epoxy                          Epoxy/Epoxy/Epoxy
  Urethane Elastomeric (1 coat)
                                                 Jotun Paints, Inc.                         Roval USA Corp.
Corotech High Performance Coatings                  Penguard Express/Hardtop Flexi            Roval R22 Cold Galvanizing Compound
  Corotech                                          Epoxy (1-2 coats)/Urethane                Zinc-Rich, Organic
  Epoxy/Epoxy/Epoxy
                                                 KCC Corrosion Control Co., Ltd.            Rust Bullet, LLC
Corrocoat USA, Inc.                                Techni-Plus AEP 20.2                       Rust Bullet Standard
  Polyglass VEF                                    Epoxy/Epoxy 100% solids                    Other
  Vinyl Ester/Vinyl Ester/Vinyl Ester

                                                                                                    © 2014-2015 Technology Publishing Co.
14

      SPONSORED BY                                                                                                       Wastewater Plants

Sauereisen, Inc.                                             Interior Exposure                               The Dow Chemical Company
  Sauereisen                                                 Environment                                       Vorastar
  Epoxy 100% Solids (1 or 2 coats)                                                                             Polyurea Hybrid (1, 2, or 3 coats)
                                                             Concrete Walls, Ceilings
Seacoat Technology                                                                                           Dudick, Inc.
  Fluoro-Slik                                                                                                  Protecto-Coat
  Epoxy/Epoxy/Siloxane                                       ABRI Industries                                   Epoxy/Vinyl Ester/Vinyl Ester
                                                               MicroBond 87                                  Dunn-Edwards
                                                               Inorganic Zinc/Epoxy/Urethane                   Multiple Brand Options
                                                             Advanced Chemical Technologies, Inc.              Epoxy/Epoxy/Epoxy
                                                               SIL-ACT                                       Duromar, Inc.
                                                               Siloxane/Siloxane                               HPL-1110/HPL-1110
                                                             Alistagen Corporation                             Epoxy 100% Solids (1 or 2 coats)
                                                                Caliwel Antimicrobial                        EA Wilcox
                                                                Other                                          Wasser
                                                             Altex Coatings Ltd.                               MCU/MCU/MCU
Sherwin-Williams                                                Carboline                                    ENECON Corporation
  Macropoxy 646                                                 Epoxy (1-2 coats)/Urethane                     Chemclad
  Epoxy/Epoxy/Epoxy
                                                             Andek Corporation                                 Epoxy/Epoxy 100% Solids
Simpson Strong-Tie                                             Cocoon                                        Euclid Chemical Company
   FX-480, FX-70-9 Protective Ctg.                             Vinyl Ester/Vinyl Ester/Vinyl Ester             Duralkote 240
   Epoxy/Epoxy 100% solids
                                                             ARC Composites, Div. of A.W. Chesterton           Epoxy/Epoxy 100% Solids
Specialty Products, Inc. (SPI)                                 ARC CS2                                       FLOROCK, Crawford Labs, Inc.
  Polyshield HT-100F UB, Polyshield HT, Polyshield Hi-Rise     Epoxy 100% Solids (1 or 2 coats)                CR 250
  Polyurea Pure (1, 2, or 3 coats)
                                                             Arma Coatings                                     Urethane/Urethane
Stirling Lloyd Group Plc.                                      Arma 6000 UV stable                           FSC Coatings, Inc.
   Permare                                                     Polyurea Pure (1, 2, or 3 coats)                Bio-Safe Prime & Seal/MaxLife
   Other
                                                             Atlas Minerals & Chemicals, Inc.                  Alkyd/Acrylic/Acrylic
Stirling Lloyd Products, Inc.                                   Rezklad                                      Gemite Products, Inc.
   Permare                                                      Epoxy 100% Solids (1 or 2 coats)               Tuff-Flex CA
   Other
                                                             Avilion, Inc.                                     Other
Termarust Technologies                                          PPG                                          Global EcoTechnologies
   Termarust TR2100 HR CSA Series                               Epoxy/Epoxy/Epoxy                               Endura-Flex
   Calcium Sulphonate
                                                             Benjamin Moore & Co.                               Urethane Elastomeric (1 coat)
Tesla NanoCoatings, Inc.                                       Corotech Polyamide Epoxy Coating V400         Grace Distributing
   Teslan                                                      Epoxy/Epoxy/Epoxy                               LifeGuard Active Rust Primer
   Organic Zinc/Epoxy/Epoxy
                                                             Blome International/Part of the HEMPEL Group      Other
Thermion                                                        Versi-Line                                   Gulf Coast Paint Mfg., Inc.
  Thermion                                                      Epoxy 100% Solids (1 or 2 coats)               GCP
  Thermal Spray
                                                             Bowers Industrial                                 Epoxy/Epoxy/Epoxy
Thin Film Technology, Inc.                                     Duromar                                       Heresite Protective Coatings, LLC
   Bio-Dur 560                                                 Epoxy/Epoxy 100% Solids                         Heresite VR-500
   Epoxy 100% Solids (1 or 2 coats)
                                                             Carboline Company                                 Other
The Thortex Group                                              Sanitile                                      HJ3 Composite Technologies
  Chemi-Tech                                                   Epoxy/Epoxy 100% Solids                         HJ3 CarbonSeal Industrial Systems
  Epoxy 100% Solids (1 or 2 coats)
                                                             CCI Con-Tech of California, Inc.                  Epoxy/Epoxy Novolac/Epoxy Novolac
Tnemec Company, Inc.                                           Hydro-Pox                                     Hy-Tech Thermal Solutions
  Hi-Build Epoxoline                                           Epoxy/Epoxy 100% Solids                         Barrier Coat
  Epoxy/Epoxy/Epoxy
                                                             Ceilcote (International Paint, LLC)               Other
U.S. Coatings, LLC                                             Ceilcote/ Flakeline                           Induron Coatings, Inc.
   EpoxyGrip                                                   Epoxy/Epoxy Flake Filled/Epoxy Flake Filled      Perma-Clean II
   Epoxy/Epoxy/Epoxy
                                                             ChemCo Systems                                     Epoxy/Epoxy/Epoxy
VersaFlex Incorporated                                         CCS HiChem Resistance                         Industrial Nanotech, Inc.
   FSS 50 DM                                                   Epoxy 100% Solids (1 or 2 coats)                 Nansulate GP
   Polyurea Pure (1, 2, or 3 coats)
                                                             ChemMasters, Inc.                                  Thermal Spray
Wasser Corporation                                             Colorcoat                                     International Cellulose Corporation
  Wasser                                                       Alkyd/Acrylic/Acrylic                            K-13
  MCU Zinc Rich/MCU/MCU
                                                             Corotech High Performance Coatings                 Thermal Spray
Watson Coatings, Inc.                                          Corotech                                      International Paint, LLC
  Aqua-Shield                                                  Epoxy (1-2 coats)/Acrylic (1-2 coats)            Ceilcote
  Alkyd/Acrylic/Acrylic
                                                             Corrocoat USA, Inc.                                Epoxy Flake Filled/Epoxy Flake Filled
Wilko Paint, Inc.                                              Polyglass VEF                                 International Polyurethane Systems
   Wilko                                                       Vinyl Ester/Vinyl Ester/Vinyl Ester              SBR3002
   Epoxy/Epoxy/Epoxy
                                                             Crossfield Products Corp.                          Polyurea Hybrid (1, 2, or 3 coats)
Wolverine Coatings Corporation                                 Dex-O-Tex                                     Jotun Paints, Inc.
  ChemShield                                                   Epoxy (1-2 coats)/Urethane                       Penguard Express / Hardtop Flexi
  Epoxy 100% Solids (1 or 2 coats)
                                                             Devoe HPC (International Paint, LLC)               Epoxy (1-2 coats)/Urethane
ZRC Worldwide                                                  Devoe High Performance Coatings               Kaufman Products, Inc.
  ZRC-221 Cold Galvanizing Compound                            Epoxy/Epoxy/Epoxy                               SurePoxy HiBild
  Zinc-Rich, Organic
                                                             Diamond Vogel Paint Company                       Epoxy 100% Solids (1 or 2 coats)
                                                                Vers-Acryl 200/Vers-Acryl 222
                                                                Other

                                                                                                                      © 2014-2015 Technology Publishing Co.
15

Wastewater Plants                                            SPONSORED BY

KCC Corrosion Control Co., Ltd.                       Rainguard International                                    Interior Exposure
  Techni-Plus AEP 20.2                                  Rainguard                                                Environment
  Epoxy/Epoxy 100% solids                               Siloxane/Siloxane
                                                                                                                 Concrete Floors
Key Resin Company                                     Raven Lining Systems
  Key 544, Key 467-HS                                   Raven Lining Systems
  Epoxy (1-2 coats)/Urethane                            Epoxy 100% Solids (1 or 2 coats)                         ABRI Industries
                                                                                                                   MicroBond 87
Kopak Industries                                      REMA Corrosion Control, Inc.
                                                                                                                   Inorganic Zinc/Epoxy/Urethane
  Kopak                                                 Corogard
  Epoxy Coal Tar High Build (1 or 2 coats)              Epoxy 100% Solids (1 or 2 coats)                         AcryliCon Flooring Solutions
                                                                                                                   AcryliCon Decor
Kryton International, Inc.                            Rhino Linings Corporation
                                                                                                                   Other
  Krystol T1, Krystol T2                                Rhino Extreme
  Other                                                 Polyurea Pure (1, 2, or 3 coats)                         Advanced Chemical Technologies, Inc.
                                                                                                                   SIL-ACT
Linabond                                              Rock-Tred Corporation
                                                                                                                   Siloxane/Siloxane
   SP Mastic Sys, Structural Polymer Sys, Simulform     Novo-Poxi
   Sheet Lining, Thermoplastic                          Epoxy/Epoxy Novolac/Epoxy Novolac                        Altex Coatings Ltd.
                                                                                                                    Carboline
Madewell Products Corporation                         Rodda Paint Co./Cloverdale Paint
                                                                                                                    Epoxy/Epoxy/Epoxy
  Mainstay Composite Liner                              ClovaMastic
  Epoxy 100% Solids (1 or 2 coats)                      Epoxy/Epoxy/Epoxy                                        Andek Corporation
                                                                                                                   Polafloor Epoxy
Micor Company, Inc.                                   Sauereisen, Inc.
                                                                                                                   Epoxy/Epoxy/Epoxy
  Micorox 1882                                          Sauereisen
  Epoxy 100% Solids (1 or 2 coats)                      Epoxy 100% Solids (1 or 2 coats)                         ARC Composites, Div. of A.W. Chesterton
                                                                                                                   ARC CS2
Milamar Coatings, LLC                                 SaverSystems/Defy
                                                                                                                   Epoxy 100% Solids (1 or 2 coats)
   ICO Glaze                                            MasonrySaver
   Epoxy 100% Solids (1 or 2 coats)                     Siloxane/Siloxane                                        Arizona Polymer Flooring, Inc.
                                                                                                                    Epoxy Novolac 900
National Polymers, Inc.                               Sherwin-Williams
                                                                                                                    Epoxy/Epoxy Novolac/Epoxy Novolac
  Private Label                                         WB Tile Clad
  Epoxy/Epoxy 100% Solids                               Epoxy/Epoxy/Epoxy                                        Arma Coatings
                                                                                                                   Arma 6000
Northern Industries, Inc.                             Simpson Strong-Tie
                                                                                                                   Polyurea Hybrid (1, 2, or 3 coats)
  NI-21                                                  FX-480, FX-498 Protective Ctg.
  Epoxy/Epoxy 100% Solids                                Epoxy/Epoxy 100% solids                                 Atlas Minerals & Chemicals, Inc.
                                                                                                                    Rezklad
NSP Specialty Products                                Specialty Products, Inc. (SPI)
                                                        Aquaseal Hi-Rise X3, Polyshield HT-100F UB, Ultra Bond      Epoxy 100% Solids (1 or 2 coats)
  NSP-120 High Performance Epoxy Coating
  Epoxy 100% Solids (1 or 2 coats)                      Polyurea Pure (1, 2, or 3 coats)                         Avilion, Inc.
                                                      SpeedCove, Inc. DBA Solid Rock Enterprises                    PPG
Nukote Coating Systems Canada, Inc.
                                                        SpeedCove Precast Cove Base Systems                         Epoxy/Epoxy/Epoxy
  Nukote
  Polyurea Pure (1, 2, or 3 coats)                      Other                                                    Benjamin Moore & Co.
                                                      Termarust Technologies                                       Corotech 100% Solid Epoxy Floor Coating V430
Nukote Coating Systems International
                                                         Termaflex TX4000                                          Epoxy/Epoxy/Epoxy
  Nukote XT+
  Polyurea Hybrid (1, 2, or 3 coats)                     Other                                                   Blome International/Part of the HEMPEL Group
                                                      Thin Film Technology, Inc.                                    Versi-Line
Oak Ridge Chemical and Equipment
                                                         Bio-Gard 258/251                                           Epoxy/Epoxy Novolac/Epoxy Novolac
  Oak Ridge
  Polyurea Pure (1, 2, or 3 coats)                       Epoxy 100% Solids (1 or 2 coats)                        Bowers Industrial
                                                      The Thortex Group                                            Duromar
Peerless Industrial Systems
                                                        Chemi-Tech                                                 Organic Zinc/Epoxy 100% Solids
  Epigen
  Epoxy/Epoxy 100% Solids                               Epoxy 100% Solids (1 or 2 coats)                         Carboline Company
                                                      Tnemec Company, Inc.                                         Sanitile
Polibrid Coatings, Inc.
                                                        Hi-Build Epoxoline                                         Epoxy/Epoxy 100% Solids
  Polibrid 705
  Urethane Elastomeric (1 coat)                         Epoxy/Epoxy/Epoxy                                        CCI Con-Tech of California, Inc.
                                                      Tuf Top Coatings                                             Hydro-Pox
Polycoat Products
                                                         Tuf-Top                                                   Epoxy/Epoxy 100% solids
  Polyeuro 5502
  Polyurea Pure (1, 2, or 3 coats)                       Epoxy (1-2 coats)/Urethane                              Ceilcote (International Paint, LLC)
                                                      U.S. Coatings, LLC                                           Ceilcote/ Flakeline MR
Polymax/Milamar Coatings, LLC
                                                         EpoxyGrip                                                 Epoxy/Epoxy Flake Filled/Epoxy Flake Filled
  PolyMax 250V-550
  Epoxy (1-2 coats)/Urethane                             Epoxy/Epoxy/Epoxy                                       ChemCo Systems
                                                      VersaFlex Incorporated                                       CCS HiChem Resistance
PPC Coatings (MTR)
                                                         FSS 45 DC-F                                               Epoxy 100% Solids (1 or 2 coats)
  PPC Coatings
  Other                                                  Polyurea Pure (1, 2, or 3 coats)                        ChemMasters, Inc.
                                                      Wasser Corporation                                           Duraguard 100 Series
PPG Protective & Marine Coatings
                                                        Wasser                                                     Epoxy/Epoxy/Epoxy
  Amercoat
  Epoxy/Epoxy/Epoxy                                     MCU/MCU/MCU                                              CIM Industries
                                                      Watson Coatings, Inc.                                        CIM
Protective Floor and Linings Div. Milamar Ctgs
                                                        Armorex / Aqua-Shield                                      Urethane Elastomeric (1 coat)
   PF&L Fibercoat
   Epoxy/Epoxy 100% Solids                              Epoxy (1-2 coats)/Acrylic (1-2 coats)                    Concrete Solutions Products by Rhino Linings
                                                      Wilko Paint, Inc.                                            Concrete Solutions Epoxy 200
                                                         Wilko                                                     Epoxy/Epoxy 100% solids
                                                         Epoxy/Epoxy/Epoxy                                       Convenience Products/Seal-Krete
                                                      Wolverine Coatings Corporation                               Seal-Krete Dura-Shell WB
                                                        ChemShield                                                 Urethane/Urethane
                                                        Epoxy 100% Solids (1 or 2 coats)                         Copps Industries, Inc.
                                                                                                                   Armorgard 500
                                                                                                                   Epoxy/Epoxy 100% Solids

                                                                                                                         © 2014-2015 Technology Publishing Co.
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