Page 277 - Catalogs

APPROVED APPLICATIONS:

Deck Type 1 Concrete Decks

Deck Description: Min. 3000 psi

System Type A(1): Poly-I-Gard 125 Pedestrian or Light Vehicular Traffic System

Substrate Surface must be clean, dry and sound with an open texture. Remove dust, laitance, grease,
Preparation: curing compounds, bond inhibiting impregnations, waxes, and any other contaminants. All
projections, rough spots, etc. should be dressed off to achieve a level surface prior to the
application.

All concrete should be cleaned and prepared to achieve a laitance and contaminant free, open
textured surface by blast cleaning or equivalent mechanical means (CSP 3-4 per ICRI
guidelines).

Primer: Apply Polyprime 2180SC or Enviro-Grip EP#2SC with an airless sprayer, brush, or phenolic
resin core roller at approximately 300 sqft/gal. and work well into the substrate to ensure
adequate penetration and sealing and puddles are avoided. Allow primer to dry tack free.
Base coat must be applied within 8-12 hours of primer application.

2
Base Coat: PC-220 should be applied at 50 ft /gallon using a notched squeegee or trowel and back roll
using a phenolic resin core roller. Extend base coat over entire area including previously
detailed cracks and control joints. Allow coating to cure a minimum of 16 hours at 75°F and
50% RH or until tack free before top coating.

2
Intermediate Coat: Poly-I-Gard 246 should be applied at 100 ft /gallon using a notched squeegee or trowel and
back roll using a phenolic resin core roller. Apply 20 mesh silica sand* evenly distributed at
2
the rate of 10-15 lbs/100 ft - seeded immediately into wet coating and backrolled. Allow
coating to cure a minimum of 16 hours at 75°F and 50% RH or until tack free between coats.

2
Top Coat: Polyglaze AL-50 should be applied at 100 ft /gallon using a flat or notched squeegee. Allow
coating to cure a minimum of 16 hours at 75°F and 50% RH or until tack free.

Integrity Test: Required, and shall be performed in accordance with ASTM D 5957 by an approved lab.
Water may be maintained for a period longer than 24 hours if required.

Inspection: Contractor and a representative of the membrane manufacturer shall inspect the waterproofing
assembly and notify the contractor of any defects. All defects shall be corrected.

Maximum Design
Pressure: -502.5psf (See General Limitation #9)

NOA No.: 21-1207.01
Expiration Date: 05/11/28
Approval Date: 05/11/23
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