Page 44 - Polycoat 1.1 Table of Contents

basecoat and two coats of an aliphatic polyurethane topcoat. 300 sqft/gallon. Apply using a brush or phenolic core roller.
The decking system protects surfaces against spalling, freeze/ This will result in a minimum 4 dry mils (102 microns) thick
thaw damage and chemicals commonly encountered on these membrane.
surfaces. It is an elastomeric system designed to expand and
contract with normal structural movements. It has a proven Note: For rough or porous concrete or when outgassing is a concern,
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fire rated/waterproofing system for use in a wide range of use Polyprime EBF-LV Primer at an approximate rate of 1 gallon/200
sqft (0.21 liters/sqm) or 200 sqft/gallon; this rate may vary on the
applications. Installed and maintained properly, the Polydeck ® porosity of the substrate. Allow primer to become tack free before
355 Pedestrian Traffic Deck System will ensure years of moving to the Coating Application. The point at which the primer is
service. Make sure to use the correct grade of product which deemed tack free is when the primer passes thumbprint test. The
complies with VOC regulations/requirements applicable as thumbprint test is defined by when a thumbprint is left in the primer
per federal, state, statutory, counties, cities and local bodies and primer does not transfer to the thumb. If the primer has been
allowed to remain tack free for more than 12 hours, it is necessary
at the place of installation. to solvent wipe surface with VOC-compliant solvent and re-prime
the surface.
Approvals, Codes & Testing
• Class B Fire Rating on 5/8” (1.59cm) or 19/32” (1.51cm) PHASE 3:
Plywood, UBC Standard 32-7, ASTM E108, UL 790, NFPA Apply PC-440/440SC/440SF to the substrate at a rate of 2
256 gallons/100 sqft (0.82 liters/sqm) or 50 sqft/gallon. For best
• ICC-ES Report ESR-2785 results, use a 1/8” (0.32 cm) notched trowel or notched
• Class A Fire Rating on Concrete squeegee. A 3/8” (0.965 cm) nap phenolic core roller may be
• Los Angeles City General Approval Report #RR25171 used but extra care should be taken to prevent air bubbles.
• One-Hour Fire Resistive Construction, UBC Standard No. Spread mixed PC-440/440SC/440SF evenly over the entire deck
710, 1997 resulting in a minimum of 22 to 32 ± 2 dry mils (559 to 812 ±
• Meets the Criteria of ASTM C957 51 microns) thick membrane. Allow PC-440/440SC/440SF to
• Polydeck 355 conforms to CCMC exposed cold-applied cure before proceeding to phase 4.
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Elastomeric Roofing Membrane that can withstand Note: Polycoat basecoats should be applied the same day as the
exposure to pedestrian traffic in compliance with the primer to avoid missing the primer recoat window. If this is not
intent of the National Building Code of Canada 1995. possible, broadcast heavy with aggregate into the primer to aid in
the adhesion of the basecoat to the primer. Do not exceed recoat
Product Instructions window of 12 hours after cure and if recoat window is passed, then
For complete information associated with the application of solvent wipe the surface with VOC-compliant solvent and re-prime
all Polycoat Products decking systems and products, refer before proceeding with the next coat/phase.
to the General Guidelines and Technical Data Sheets of the PHASE 4:
Polycoat Products catalog, which describes the products, Apply a second coat of PC-440/440SC/440SF at a rate of 1
surface preparation, job conditions, finishing details and other gallon/100 sqft (0.41 liters/sqm) or 100 sqft/gallon. Immediately
necessary information. broadcast washed, dry, rounded sand, 20 mesh (0.841 mm),
6.5+ Mohs minimum hardness at a rate of 100 lbs/100 sqft (4.88
Coatings Application kgs/sqm), into the wet second coat, covering it completely.
PHASE 1: This coat will result in an additional minimum 11 to 16 ± 2
Check area of application to ensure that it conforms to the dry mils (279 to 406 ± 51 microns) thick membrane, exclusive
substrate requirements, as stated in the General Guidelines. of aggregate. After this coat has cured, remove all loose
Prime all joints, cracks, flashings with approved primers as aggregate.
specified below in Phase 2. Apply a two-part paste consisting
of PC-440/440SC/440SF and PC-50 over all joints, cracks and PHASE 5:
flashing. Mixing ratio is a ½ pint of PC-50 to 1 gallon of PC- Apply desired color of Polyglaze 400/400C/400SC topcoat
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440/440SC/440SF (0.24 liter to 3.78 liters) or 1 quart PC-50 to 5 at a rate of 3/4 gallon/100 sqft (0.31 liters/sqm) or 125 sqft/
gallons of PC-440/440SC/440SF (0.9 liter to 18.9 liters). Do not gallon. For best results, use a sprayer. This coat will result
mix more material than can be used in 20 minutes. Bridge the in an additional minimum 8 to 10 ± 2 dry mils (203 to 254 ±
joints, cracks, and flashings with 4” (10.2 cm) Straight Jacket 51 microns) thick membrane. Allow this coat to cure before
Tape, pushing it into the paste with a trowel. Over Straight proceeding to Phase 6.
Jacket Tape, apply a stripe coat of the PC-440/440SC/440SF and
PC-50 mixture and taper it onto the adjacent surface. Allow PHASE 6:
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the surface to cure for 6 to 8 hours. Apply a second coat of Polyglaze 400/400C/400SC topcoat at
a rate of 3/4 gallon/100 sqft (0.31 liters/sqm) or 125 sqft/gallon.
PHASE 2: This coat will result in an additional minimum 8 to 10 ± 2 dry
Substrates other than new plywood are to be primed. Primer mils (203 to 254 ± 51 microns) thick membrane. At 75°F (24°C)
is optional for new plywood. Metal and concrete which have and 50% relative humidity, allow 72 hours of cure time before
been cleaned should be primed with Polyprime 2180SC or permitting heavy traffic on the finished system.
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Polyprime 21 at a rate of 1 gallon/300 sqft (0.14 liters/sqm) or
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