Page 87 - Catalogs

GUIDE SPECIFICATIONS | Section 4.1
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POLYCOAT PC-IM 129 SYSTEM

New asphalt and new concrete must be cured a minimum of 28 and prime surface prior to recoating.
days prior to application. Old asphalt/concrete must be free of
loose aggregate, dirt and be dry. New and old concrete should Abrading shall be by grinder or other mechanical means.
be shot blasted, water blasted or abrasive blasted. Grease
spots and oil should be cleaned with appropriate cleaners. SCRIM:
Optional: Use Tietex T272 Polyester Scrim or equal.
Note: To promote adhesion and minimize outgassing, recommended Limitations and Requirements
Polyprime primer should be used on all surfaces except for new If substrates are not clean and dry, Polycoat PC-IM 129 will not
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plywood, where it is optional.
have good adhesion and the coating over concrete will blister.
PHASE 2: For concrete cleaning see General Guidelines. Concrete/
Prime the required surfaces with Polyprime 2180SC for metal asphalt: the outside temperature should be in a declining
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or concrete surfaces or Polyprime U for asphalt surfaces at mode (installation should be done in the late afternoon).
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a rate of 1 gallon/300 sqft (0.14 liters/sqm) or 300 sqft/gallon. Coating should be applied at least 5°F (3°C) above the dew
Apply using a brush or phenolic core roller. This will result in 5 point. New concrete/asphalt and masonry must be cured for
dry mils (127 microns) of coating. *Note: For rough or porous 28 days. Concrete must exhibit 3000 psi minimum strength.
concrete or when outgassing is a concern, use Polyprime Concrete surfaces to be coated must be trowel finished in
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EBF-LV at an approximate rate of 1 gallon/200 sqft (0.21 liters/ compliance with the American Concrete Institute (except
sqm) or 200 sqft/gallon; this rate may vary on the porosity that hand troweling is not required), followed by a fine hair
of the substrate. Allow primer to become tack free before brooming, left free of loose particles, and shall be without
proceeding to Phase 3. ridges, projections, voids and concrete droppings that would
be mechanically detrimental to coating application or function.
PHASE 3:
The first coat of Polycoat PC-IM 129 (a mixture of Side-A and The only acceptable grade of plywood is APA rated exterior
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Side-B) should be applied at a rate of 2 gallons/100 sqft (0.82 grade or better. The appearance and physical characteristics of
liters/sqm) or 50 sqft/gallon resulting in 29 ± 2 dry mils (737 the plywood and grade should be considered. Plywood should
± 51 microns) of membrane. For roofs, ponds and reservoirs, be new or cleaned and sanded (see general guidelines). UV
immediately embed scrim where required into 10-15 mils stable, but the color may fade, chalk and discolor over time.
(2.54 -3.81 microns) of wet coating, overlapping each edge a
minimum of 1 inch (2.54 cm). Use a dry phenolic core roller Coverage rates recommended are based on lab condition;
to press the scrim into the coating, creating a bond between applied at 75°F (24°C) ambient temperature and are intended
the coating and the scrim. to be minimum coverage rates are exclusive of additional
amounts needed to fill potholes, spallings, scalling, rough and
On other substrates, skip scrim and proceed to Phase 4. Allow irregular surfaces. Porosity and roughness of the substrate,
to cure (to touch) before proceeding to Phase 4. aggregate size, and product temperature will affect coverage
rates. Material mil thickness rates are calculated on theoretical
PHASE 4: coverage for a smooth substrate and do not account for
Apply the second coat of Polycoat PC-IM 129 (mixture of the actual texture or substrate conditions in the field or at
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Side-A and Side-B) at the rate of 2 gallons/100 sqft (0.82 liters/ the time of application. Sample mockups on the projects
sqm) or 50 sqft/gallon resulting in 29 ± 2 dry mils (737 ± 51 are recommended to determine the exact coverage rates
microns) of membrane.
necessary to waterproof the deck to acceptable standards.
FINISHED SYSTEM: Equipment should be cleaned with a urethane grade
When applied as directed, the Polycoat PC-IM 129 environmentally safe solvent, as permitted under local
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waterproofing system will provide 58 dry mils (1473 regulations, immediately after use. Uncured materials
dry microns), exclusive of fabric or topcoat, of superior are sensitive to heat and moisture. The substrate must be
waterproofing. Any optional adhesion test is to be performed structurally sound and sloped for proper drainage. Polycoat
seven days after product application. Products assumes no liability for substrate defects. Field visits
by Polycoat Products personnel are for the purpose of making
RECOAT: technical recommendations only and are not to supervise or
At 75°F (24°C) and 50% relative humidity, recoating and provide quality control on the job site.
multiple or second coats must be completed within eight (8)
hours of previous applications of Polycoat PC-IM129. After The following conditions must not be coated with Polycoat
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this eight (8) hour window, it is necessary to abrade, clean Products deck coating systems or products: on grade slabs,
split slabs with buried membrane, sandwich slabs with

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