Page 90 - Catalogs

GUIDE SPECIFICATIONS | Section 4.2
POLYCOAT-AQUATIGHT ™

minutes. Bridge the joints, cracks, and flashings with 4” (10 Limitations and Requirements
cm) Straight Jacket Tape pushing it into the paste with a trowel. The following conditions must not be coated with Polycoat Products coating
Over Straight Jacket Tape apply a stripe coat of the PC-440SF systems or products: Concrete over an unvented metal pan, magnesite,
and PC-50 mixture and taper it onto the adjacent surface. lightweight concrete, asphalt surfaces and asphalt overlays. Concrete must
Allow the surface to cure for up to 6 to 8 hours. exhibit 3000-psi minimum strength. Concrete surfaces to be coated must be
trowel finished in compliance with the American Concrete Institute (except that
PHASE 2: hand troweling is not required), followed by a fine hair brooming, left free of
Prime the surface with Polyprime 21 at a rate of 1 gallon loose particles, and shall be without ridges, projections, voids and concrete
®
(mixture of Side-A & Side-B)/300 sqft (0.14 liters/m²) or 300 droppings that would be mechanically detrimental to coating application or
sqft/gallon. Apply using a brush or phenolic core roller. This will function. New concrete and masonry must be cured for 28 days. Concrete
result in 5 dry mils (125 microns) of coating. Allow Polyprime® cleaning (see General Guidelines). The only acceptable grade of plywood is
to become tack free before proceeding to Phase 3. APA rated exterior grade or better. The appearance and physical characteristics
of the plywood and grade should be considered. Plywood should be new or
cleaned and sanded (see general guidelines). Coating should be applied at least
PHASE 3:
Apply a mixture of PC-440SF to the substrate at a rate of 3 5°F (3°C) above the dew point.
gallons/100 sqft (1.23 liters/sqm or 33 sqft/gallon. Do not mix Coverage rates recommended are based on lab conditions, applied at 75°F
more material than can be used in 20 minutes. For best results, (24°C) ambient temperature and are intended to be minimum coverage rates
apply using a notched trowel or squeegee. A phenolic core on clean, smooth plywood, and are exclusive of additional amounts needed
roller may be used but extra care should be taken to prevent to fill potholes, spallings, scalling, rough and irregular surfaces. Porosity and
air bubbles. Spread PC-440SF evenly over the entire surface roughness of the substrate, aggregate size, and product temperature will
resulting in a 48 ± 2 dry mils (1066± 51 microns) membrane. affect coverage rates. Material mil thickness rates are calculated on theoretical
Allow PC-440SF to cure before proceeding to Phase 4. PC-50 coverage for a smooth substrate and do not account for the actual texture or
must be added to the PC-440 at a ratio of 1 quart PC-50 to 5 substrate conditions in the field or at the time of application. Sample mockups on
gallons PC-440. the projects are recommended to determine the exact coverage rates necessary
to waterproof the deck to acceptable standards.
PHASE 4: Equipment should be cleaned with a urethane grade environmentally safe
Apply a second coat of PC-440SF at a rate of 1 1/2 gallons/100 sqft solvent, as permitted under local regulations, immediately after use. Uncured
(0.62 liters/sqm) or 66 sqft/gallon, spread evenly over the entire materials are sensitive to heat and moisture. The substrate must be structurally
surface, resulting in a 24 ± 2 dry mils (610 ± 51 microns) membrane. sound and sloped for proper drainage. Polycoat Products assumes no liability
for substrate defects. Field visits by Polycoat Products personnel are for the
PHASE 5: purpose of making technical recommendations only and are not to supervise
Broadcast washed, dry, angular sand, heavy, 16 grit (1.18 mm) or provide quality control on the job site.
or larger aggregate into the final coat of PC-440SF until refusal.
Allow the membrane to cure, remove the excess aggregate, Warning
and apply a thin set mortar when ready for tile installation. The products in this system contain Isocyanates, Aromatic Hydrocarbons,
Curatives and Solvents.
When utilizing a mortar bed over the Polycoat-Aquatight™
waterproofing system, allow the completed membrane to cure
prior to installation of the float. A water test can be conducted
after 24 hours.

FINISHED SYSTEM:
When applied as directed, the Polycoat-Aquatightç
waterproofing system will provide 72 dry mils (1829 microns),
exclusive of fabric, of superior waterproofing protection.
Requires a continuous coating application to minimize lines
and/or streaking. Any optional adhesion test is to be performed
seven days after product application.

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 4.2
wpsales@polycoatusa.com | www.polycoatusa.com