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TECHNICAL DATA SHEET  |  Section 5.9
                                                                                                POLYPRIME  U
                                                                                                                ®
                                                                                       Two Component, High Solids,
                                                                                       Aromatic Polyurethane Primer



            Product Description
            Polyprime  U is a two component, high solids, liquid applied   Technical Data (Based on Draw Down Film)
                    ®
            primer with unique penetrating characteristics.
                                                                   Coverage Rate                       1 gal/300 sqft
             Features                                                                                     0.14 l/sqm
              •  Fast Re-Coat Time                                                                        5 ± 1 mils
              •  High Solids                                       Dry Film Thickness per           127 ± 25 microns
                                                                   Coat
              •  Low Odor
              •  Low Viscosity
                                                                   Mixing Ratio                              1A:1B
             Typical Uses
                                                                   Pot Life at 75ºF (24ºC),               30-60 min
               •  Intercoat adhesion and re-coat primer for existing   50% RH
                urethane systems
                                                             ®
                                           ®
               •  When combined with Polyglaze  Hardener, Polyprime    Specific Gravity,
                U may be used as a quick drying concrete primer for   Side-A                              1.22 ± 0.1
                Vehicular and Pedestrian Traffic Deck Coatings     Side-B                                 0.98 ± 0.1
                                                                   Total Solids by Weight,               97.8% ± 2%
             Packaging                                             ASTM D2369
              2-Gallon Kit            One 1 gallon (3.78 liters) can
                                      of Side-A and One 1 gallon   Total Solids by Volume,               98.8% ± 2%
                                      (3.78 liter) can of Side-B   ASTM D2697

              10-Gallon Kit           One 5 gallon (18.9 liter) pail   Viscosity at 75°F (24°C)        500 ± 100 cps
                                      of Side-A and One 5 gallon
                                      (18.9 liter) pail of Side-B  Volatile Organic
                                                                   Compounds,                             0.21 lb/gal
                                                                   ASTM D2369-81                        25 gm/liters

            Color
            Side-A: Black, Side-B: White
                                                                 When used as a quick drying primer, mix Polyprime  U at a
                                                                                                              ®
            Coverage                                             mix ratio of:
            The approximate coverage is 1 gallon/300 sqft (0.14 l/sqm)
            or 300 sqft/gallon. Coverage rate will depend on surface   2-gallon (7.57 l) kit: mix Polyprime  U Side-A and Side-B, then
                                                                                             ®
            roughness and porosity.                                  mix in 1/2 pint (23 ml) of Polyglaze  Hardener.
                                                                                              ®
                                                                                                ®
            Surface Preparation                                      10-gallon (37.85 l) kit: mix Polyprime  U Side-A and Side-B,
                                                                                                 ®
            All surfaces must be free of oil, grease, dirt and other   then mix in 1 quart (95 ml) of Polyglaze  Hardener.
            contaminants. Refer to General Guidelines for complete   Application
            information.
                                                                          ®
                                                                 Polyprime  U should be applied at the rate of 1 gallon (mixture
            Mixing                                               of Side-A & Side-B)/300 sqft (0.14 liters/sqm). Coverage rate
            The volume mixing ratio is 1 part Side-A to 1 part Side-B   will depend on surface roughness and porosity. It can be
            (1A:1B). Do not mix in an up and down motion.        applied using an airless sprayer, brush, or phenolic resin core
                                                                 roller. Do not allow the material to puddle.
            Polyprime  U Side-A and Side-B should be thoroughly mixed
                    ®
                                                                               ®
            individually prior to combining to ensure a homogeneous   Allow Polyprime  U to become tack free before applying the
            material. Polyprime  U must always be mixed with 1 part   coating. Approximate tack free time is 2-4 hours at 75°F (24°C)
                             ®
            Side-A and 1 part Side-B (1A:1B). The combined components   and 50% relative humidity.  If the primer has been allowed
            should be thoroughly mixed using a mechanical mixer at   to remain tack free for more than 12 hours, it is necessary
            slow speed.                                          to solvent wipe surface with VOC-compliant solvent and re-


        POLYCOAT PRODUCTS TEL 562.802.8834  |  FAX 562.921.7363                                           Section 5.9
        wpsales@polycoatusa.com  |  www.polycoatusa.com
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