Page 48 - Polycoat 1.1 Table of Contents

Description Polyprime 21 at a rate of 1 gallon/300 sqft (0.14 liters/sqm)
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The Polydeck 400 Pedestrian Traffic Deck System is a or 300 sqft/gallon. Apply using a brush or phenolic core roller.
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polyurethane, liquid applied, moisture-cured waterproofing This will result in a minimum 4 dry mils (102 microns) thick
system with a Class A Fire Rating on 3/4” (1.9 cm) or 21/32” membrane.
(1.67 cm) plywood. The system utilizes an epoxy primer, two
coats of an aromatic polyurethane basecoat and two coats Note: For rough or porous concrete or when outgassing is a concern,
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of an aliphatic polyurethane topcoat. The decking system use Polyprime EBF-LV Primer at a rate of 1 gallon/300 sqft or 300
sqft/gallon (0.14 liters/sqm); this rate may vary on the porosity of the
can be applied to protect surfaces against spalling, freeze/ substrate. Allow primer to become tack free before moving to the
thaw damage, and chemicals commonly encountered on Coating Application. The point at which the primer is deemed tack
these surfaces. It is an elastomeric system designed to free is when the primer passes thumbprint test. The thumbprint test
expand and contract with normal structural movements. It is defined by when a thumbprint is left in the primer and primer does
will neither soften in heat nor embrittle in the cold. Polydeck not transfer to the thumb. If the primer has been allowed to remain
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tack free for more than 12 hours, it is necessary to solvent wipe surface
400 Pedestrian Traffic Deck System is a proven fire rated/ with VOC-compliant solvent and re-prime the surface.
waterproofing system for use on a wide range of applications.
Installed and maintained properly, the decking system will PHASE 3:
Apply PC-440/440SC/440SF to the substrate at a rate of 3
ensure years of service. Make sure to use the correct grade of gallons/100 sqft (1.4 liters/sqm) or 33.3 sqft/gallon. Add PC
product which complies with VOC regulations/requirements 50 Accelerator to the base coat to prevent out gassing, at
applicable as per federal, state, statutory, counties, cities and the rate of 1/2 pint to 1 gal PC 50 to PC 400/ 400C/400SC. For
local bodies at the place of installation.
best results, use a 1/8” (0.32 cm) notched trowel or notched
Approvals, Codes & Testing squeegee. A 3/8” (0.965 cm) nap phenolic core roller may be
• Class A Fire Rating on 3/4” (1.9cm) or 21/32” (1.67cm) used, but extra care should be taken to prevent air bubbles.
Plywood, UBC Standard 32-7, ASTM E108, UL 790, NFPA Spread PC-440/440SC/440SF evenly over the entire deck
256 resulting in a minimum 33 to 48 ± 2 dry mils (838 – 1219 ± 51
• ICC-ES Report ESR-2785 microns) thick membrane. Allow PC-440/440SC/440SF to cure
• Los Angeles City General Approval Report #RR25171 before proceeding to Phase 4. PC-50 must be added to the
• One-Hour Fire Resistive Construction, UBC Standard No. PC-440 at a ratio of 1 quart PC-50 to 5 gallons PC-440.
7-1 Note: Polycoat basecoats should be applied the same day as the
primer to avoid missing the primer recoat window. If this is not
Product Instructions possible, broadcast heavy with aggregate into the primer to aid in
For complete information associated with the application of the adhesion of the basecoat to the primer. Do not exceed recoat
all Polycoat Products decking systems and products, refer window of 12 hours after cure and if recoat window is passed then
to the General Guidelines and Technical Data Sheets of the solvent wipe the surface with VOC-compliant solvent and re-prime
before proceeding with the next coat/phase.
Polycoat Products catalog, which describes the products,
surface preparation, job conditions, finishing details and other PHASE 4:
necessary information. Apply a second coat of PC-440/440SC/440SF at a rate of 1½
gallons/100 sqft (0.62 liters/sqm) or 75 sqft/gallon. Immediately
Coatings Application broadcast washed, dry, rounded sand, 20 mesh (0.841 mm),
PHASE 1: 6.5+ Mohs minimum hardness at a rate of 100 lbs/100 sqft
Check area of application to ensure that it conforms to the (4.88 kg/sqm)into the wet second coat, covering it completely.
substrate requirements, as stated in the General Guidelines. This coat will result in an additional minimum 16 to 22 ± 2 dry
Prime all joints, cracks, flashings with approved primers as mils (406 to 559 ± 51 microns) thick membrane, exclusive of
specified below in Phase 2. Apply a two-part paste consisting aggregate. Allow to cure before removing all loose aggregate.
of PC-440/440SC/440SF and PC-50 over all joints, cracks, and
flashing. Mixing ratio is a ½ pint of PC-50 to 1 gallon of PC- PHASE 5:
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440/440SC/440SF (0.24 liter to 3.78 liters) or 1 quart PC-50 to 5 Apply desired color of Polyglaze 400FR/400FR-C/400FR-
gallons of PC-440/440SC/440SF (0.9 liter to 18.9 liters). Do not SC topcoat mixture at a rate of 1 1/4 gallons/100 sqft (0.51
mix more material than can be used in 20 minutes. Bridge the liters/sqm) or 80 sqft/gallon. Mixing ratio is 1 part Polyglaze ®
joints, cracks, and flashings with 4” (10.2 cm) Straight Jacket 400FR/400C-FR/400SC-FR Part-1 Powder to 5 parts 400FR/400C-
Tape, pushing it into the paste with a trowel. Over Straight FR/400SC-FR Part-2 Liquid. For best results use a 3/8” (0.965 cm)
Jacket Tape, apply a stripe coat of the PC-440/440SC/440SF and nap phenolic core roller. This coat will result in an additional
PC-50 mixture and taper it onto the adjacent surface. Allow minimum 13 to 16 ± 2 dry mils (330 to 406 ± 51 microns) thick
the surface to cure for 6 to 8 hours. coating. Allow to cure before proceeding to Phase 6.

PHASE 2: PHASE 6:
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Substrates other than new plywood are to be primed. Primer Apply desired color of Polyglaze 400/400C/400SC topcoat at
is optional for new plywood. Metal and concrete which have a rate of 3/4 gallon/100 sqft (0.31 liters/sqm) or 75 sqft/gallon.
been cleaned should be primed with Polyprime 2180SC or This coat will result in an additional 8 to 10 ± 2 dry mils (203
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