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TECHNICAL DATA SHEET  |  Section 5.2
                                                                                                POLYPRIME 21
                                                                                                               ®
                                                                           Two-Component, Epoxy-Polyamine Primer





            Product Description
            Polyprime  21 is a  two-component,  high solids, liquid   Technical Data (Based on Draw Down Film)
                     ®
            applied, epoxy-polyamine primer with unique penetrating
            characteristics. Polyprime  21 is ANSI/NSF 61 approved for   Coverage Rate        1 gal/300 sqft
                                  ®
            direct contact with potable water.                                                0.14 l/sqm
             Features                 Typical Uses                 Dry Film Thickness per     5 ± 1 mils

              •  Seamless               •  Concrete                Coat                       127 ±25 microns
              •  Excellent Adhesion     •  Plywood
              •  Low Viscosity                                     Mixing Ratio               2A : 1B

                                                                   Pot Life at 75ºF (24ºC), 50%   20-30 min
             Packaging                                             RH

              3-Gallon Kit             One 3.5 gallon pail, net fill 2   Hardness, ASTM D2240  70 ± 5 Shore D
                                       gallons (7.57 liters) of Side-A
                                       and One 1 gallon (3.78 liters)
                                       can of Side-B               Specific Gravity,
                                                                   Side-A                     1.09 ± 0.1
              15-Gallon Kit            Two 5 gallon (18.9 liters)   Side-B                    1.06 ± 0.1
                                       pails of Side-A and One 5
                                       gallon (18.9 liters) pail of
                                       Side-B                      Total Solids by Weight,    91 + 2%
                                                                   ASTM D2369

            Color                                                  Total Solids by Volume,    90 + 2%
            Side-A: Blue, Side-B: Yellow                           ASTM D2697
            Coverage                                               Viscosity at 75°F (24°C)    600 ± 50 cps
            The approximate coverage is 1 gallon/300 sqft (0.14 l/sqm)   Side-A & Side-B combined
            or 300 sqft/gallon. Coverage rate will depend on surface
            roughness and porosity.                                Volatile Organic
                                                                   Compounds,                 0.75 lb/gal
            Surface Preparation                                    ASTM D2369-81              90 gm/liters
            Remove all contaminant, oil and grease from substrate. Refer
            to General Guidelines for complete information.

            Mixing
            The volume mixing ratio is 2 parts Side-A Blue Liquid to 1 part
            Side-B Yellow Liquid, (2A:1B).                       and 50% relative humidity.

            Polyprime  21 Side-A and Side-B should be thoroughly mixed   Recommended surface temperature should be greater than
                    ®
            individually prior to combining to ensure a homogeneous   50°F (10°C) and at least 5°F (3°C) above the dew point.
            material. Polyprime  21 must always be mixed with two parts
                            ®
                                                                          ®
            Side-A and one part Side-B (2A:1B). The combined components   Polyprime  21 is very sensitive to heat.  Higher temperatures
            should be thoroughly mixed using a mechanical mixer at slow   will significantly accelerate the cure time and pot life. Use
            speed. Do not mix in an up and down motion.          caution in batch sizes and thickness of application.
            Application                                          Low temperature and/or low humidity extend the cure time.
            It can be applied using an airless sprayer, brush, or phenolic
            resin core roller.                                   Cleanup
                                                                 Equipment should be cleaned with an environmentally safe
            Allow Polyprime  21 to become tack free before applying the   solvent, as permitted under local regulations, immediately
                          ®
            coating. Approximate tack free time is 4-6 hours at 75°F (24°C)   after use.



        POLYCOAT PRODUCTS TEL 562.802.8834  |  FAX 562.921.7363                                           Section 5.2
        wpsales@polycoatusa.com  |  www.polycoatusa.com
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