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TECHNICAL DATA SHEET I SECTION 2.3
POLYPRIME 172/172SC
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Single Component,
Aromatic Polyurethane Primer

Product Description
Polyprime 172 is a single component, liquid applied, aromatic Technical Data (Based on Draw Down Film)
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polyurethane polyurea primer. This primer provides excellent
intercoat adhesion. Polyprime 172SC is designed for use in Polyprime Polyprime
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Southern California to be in compliance with SCAQMD air 172 172 SC
quality standards.
Coverage Rate 1 gal/300 sqft 1 gal/300 sqft
Features Typical Uses 0.14 l/sqm 0.14 l/sqm
• Fast Curing • Polyurethane Intercoat Dry Film Thickness 4 ± 1 mils 4 ± 1 mils
• For SCAQMD, use Primer for Pedestrian per Coat 100 ±25 100 ±25
Polyprime 172SC Decks microns microns
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• One Component
Specific Gravity 1.07 ± 0.1 1.15 ± 0.1
Packaging

1 gallon (3.78 liter) can Total Solids by 78 + 2% 74 + 2%
Weight, ASTM D2369
5 gallon (18.9 liter) pail
55 gallon drum, net fill 50 gallons (189 liters)
Total Solids by 76 + 2% 76 + 2%
Volume, ASTM D2697
Color
Amber Viscosity at 75°F 300 ± 50 cps 300 ± 50 cps
(24°C)
Mixing Side-A & Side-B
Before application, Polyprime 172 must be mixed thoroughly. combined
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Closed-top metal cans can be shaken or rolled to mix material.
Volatile Organic
Application Compounds, 1.65 lb/gal 0.75 lb/gal
Polyprime 172 should be applied at the rate of 1 gallon/300 ASTM D2369-81 197 gm/liters 90 gm/liters
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sqft (0.14 liters/sqm). Coverage rate will depend on surface
roughness and porosity. It can be applied using an airless
sprayer, brush, or phenolic resin core roller.

Allow Polyprime 172 to become tack free before applying
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the coating. Approximate tack free time is 1-2 hours at 75°F Storage
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(24°C) and 50% relative humidity. Polyprime 172 has a shelf life of 1 year from date of
manufacture in original, factory-sealed containers when stored
Recommended surface temperature should be greater than indoors at a temperature between 60-95°F (15-35°C).
50°F (10°C) and at least 5°F (3°C) above the dew point.
Limitations
Polyprime 172 is very sensitive to heat and moisture. Higher Polyprime 172 should be coated within 2 hours after it has
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temperatures and/or high humidity will significantly accelerate become tack free.
the cure time.
Not UV stable.
Low temperature and/or low humidity extend the cure time.
Surfaces must be dry, clean and free of foreign matter.
Cleanup
Equipment should be cleaned with an environmentally safe Containers that have been opened must be used as soon as
solvent, as permitted under local regulations, immediately possible.
after use.
Polyprime 172 is difficult to clean up after it has cured.
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Do not dilute under any circumstance.

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 2.3
info@polycoatusa.com | www.polycoatusa.com