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TECHNICAL DATA SHEET  |  Section 5.3
                                                                                     POLYPRIME 172/172SC
                                                                                                     ®
                                                                    Single Component, Aromatic Polyurethane Primer





            Product Description
            Polyprime  172 is a single component, liquid applied, aromatic   Technical Data (Based on Draw Down Film)
                    ®
            polyurethane polyurea primer. This primer provides excellent
                                                                                                                ®
            intercoat adhesion. Polyprime  172SC is designed for use in                   Polyprime     Polyprime
                                                                                                  ®
                                     ®
            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
                         ®
              •  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
                                    ®
            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
                    ®
            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
                          ®
            the coating. Approximate tack free time is 1-2 hours at 75°F   Storage
                                                                          ®
            (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
                    ®
            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.
                                                                          ®
                                                                 Do not dilute under any circumstance.



        POLYCOAT PRODUCTS TEL 562.802.8834  |  FAX 562.921.7363                                           Section 5.3
        wpsales@polycoatusa.com  |  www.polycoatusa.com
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