Page 84 - Polycoat 1.1 Table of Contents
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New asphalt and new concrete must be cured a minimum of 28  Limitations and Requirements
        days prior to application. Old asphalt/concrete must be free of   If substrates are not clean and dry, Polycoat  PC-IM 129 will not
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        loose aggregate, dirt and be dry.  New and old concrete should   have good adhesion and the coating over concrete will blister.
        be shot blasted, water blasted or abrasive blasted. Grease   For concrete cleaning see General Guidelines. Concrete/
        spots and oil should be cleaned with appropriate cleaners.    asphalt: the outside temperature should be in a declining
                                                              mode (installation should be done in the late afternoon).
        Note: To promote adhesion and minimize outgassing, recommended   Coating should be applied at least 5°F (3°C) above the dew
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        Polyprime  primer should be used on all surfaces except for new
        plywood, where it is optional.                        point. New concrete/asphalt and masonry must be cured for
                                                              28 days. Concrete must exhibit 3000 psi minimum strength.
        PHASE 2:                                              Concrete surfaces to be coated must be trowel finished in
        Prime the required surfaces with Polyprime  2180SC for metal   compliance with the American Concrete Institute (except
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        or concrete surfaces or Polyprime  U for asphalt surfaces at   that hand troweling is not required), followed by a fine hair
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        a rate of 1 gallon/300 sqft (0.14 liters/sqm) or 300 sqft/gallon.   brooming, left free of loose particles, and shall be without
        Apply using a brush or phenolic core roller. This will result in 5   ridges, projections, voids and concrete droppings that would
        dry mils (127 microns) of coating. *Note: For rough or porous   be mechanically detrimental to coating application or function.
        concrete or when outgassing is a concern, use Polyprime
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        EBF-LV at an approximate rate of 1 gallon/200 sqft (0.21 liters/  The only acceptable grade of plywood is APA rated exterior
        sqm) or 200 sqft/gallon; this rate may vary on the porosity   grade or better. The appearance and physical characteristics of
        of the substrate. Allow primer to become tack free before   the plywood and grade should be considered. Plywood should
        proceeding to Phase 3.                                be new or cleaned and sanded (see general guidelines). UV
                                                              stable, but the color may fade, chalk and discolor over time.
        PHASE 3:
        The first coat of Polycoat PC-IM 129 (a mixture of Side-A and   Coverage rates recommended are based on lab condition;
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        Side-B) should be applied at a rate of 2 gallons/100 sqft (0.82   applied at 75°F (24°C) ambient temperature and are intended
        liters/sqm) or 50 sqft/gallon resulting in 29 ± 2 dry mils (737   to be minimum coverage rates are exclusive of additional
        ± 51 microns) of membrane. For roofs, ponds and reservoirs,   amounts needed to fill potholes, spallings, scalling, rough and
        immediately embed scrim where required into 10-15 mils   irregular surfaces. Porosity and roughness of the substrate,
        (2.54 -3.81 microns) of wet coating, overlapping each edge a   aggregate size, and product temperature will affect coverage
        minimum of 1 inch (2.54 cm). Use a dry phenolic core roller   rates. Material mil thickness rates are calculated on theoretical
        to press the scrim into the coating, creating a bond between   coverage for a smooth substrate and do not account for
        the coating and the scrim.                            the actual texture or substrate conditions in the field or at
                                                              the time of application. Sample mockups on the projects
        On other substrates, skip scrim and proceed to Phase 4. Allow   are recommended to determine the exact coverage rates
        to cure (to touch) before proceeding to Phase 4.
                                                              necessary to waterproof the deck to acceptable standards.
        PHASE 4:                                              Equipment should be cleaned with a urethane grade
        Apply the second coat of Polycoat  PC-IM 129 (mixture of   environmentally safe solvent, as permitted under local
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        Side-A and Side-B) at the rate of 2 gallons/100 sqft (0.82 liters/  regulations, immediately after use. Uncured materials
        sqm) or 50 sqft/gallon resulting in 29 ± 2 dry mils (737 ± 51   are sensitive to heat and moisture. The substrate must be
        microns) of membrane.                                 structurally sound and sloped for proper drainage. Polycoat
                                                              Products assumes no liability for substrate defects. Field visits
        FINISHED SYSTEM:                                      by Polycoat Products personnel are for the purpose of making
        When applied as directed, the Polycoat  PC-IM 129     technical recommendations only and are not to supervise or
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        waterproofing system will provide 58 dry mils (1473   provide quality control on the job site.
        dry microns), exclusive of fabric or topcoat, of superior
        waterproofing. Any optional adhesion test is to be performed   The following conditions must not be coated with Polycoat
        seven days after product application.                 Products deck coating systems or products: on grade slabs,
                                                              split slabs with buried membrane, sandwich slabs with
                                                              insulation, slabs over unvented metal pan, swimming pools,
        RECOAT:                                               magnesite, lightweight concrete. Asphalt surfaces and asphalt
        At 75°F (24°C) and 50% relative humidity, recoating and   overlays may be coated with Polycoat decking systems if first
        multiple or second coats must be completed within eight (8)   coated with the Polycoat® PC-IM 129. Do not apply Polycoat
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        hours of previous applications of Polycoat  PC-IM129. After   PC-IM 129 in wet weather or if rain is imminent. Coating should
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        this eight (8) hour window, it is necessary to abrade, clean   not become wet within 4 hours after application. Containers
        and prime surface prior to recoating.                 that have been opened must be used as soon as possible. Do
                                                              not dilute under any circumstance.
        Abrading shall be by grinder or other mechanical means.

        SCRIM:                                                Warning
        Optional: Use Tietex T272 Polyester Scrim or equal.   The products in this system contain Isocyanates and Solvent.



        POLYCOAT PRODUCTS TEL 562.802.8834  |  FAX 562.921.7363                                           Section 4.1
        wpsales@polycoatusa.com  |  www.polycoatusa.com
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