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TECHNICAL DATA SHEET  |  Section 6.9
                                                                                                        PC-440SF
                                                                                           Solvent Free, Elastomeric,
                                                                             Aromatic Polyurethane Base Membrane



            Product Description
            PC-440SF is a single component, high solids, low odor, solvent   Technical Data (Based on Draw Down Film)
            free, environmentally safe, liquid applied, moisture-cured,
            aromatic polyurethane elastomeric waterproofing base
            membrane.                                              Coverage Rate                       1 gal/100 sqft
                                                                                                          0.41 l/sqm
             Features
                                                                   Dry Film Thickness per                16 ± 2 mils
              •  Moisture Cured                                    Coat                             406 ± 50 microns
              •  Seamless Waterproofing Membrane
              •  Solvent Free
                                                                   Hardness, ASTM D2240               50 ± 5 Shore A

             Typical Uses                                          Tear Resistance, Die C,               220 ± 25 pli
                                                                   ASTM D624                         38.5 ± 4.4 kN/m
               •  Concrete
               •  Masonry Surfaces                                 Tensile Strength,                   400 ± 100 psi
               •  Metal                                            ASTM D412                           2.7 ± 0.7 MPa
               •  Plywood
               •  Wood
                                                                   Ultimate Elongation,                   525 ± 75%
                                                                   ASTM D412
             Packaging
                                                                   Specific Gravity                        1.34 ± 0.1
              5-Gallon                5 gallon (18.9 liters) pail
                                                                   Total Solids by Weight,                  99.99%
              55-Gallon               55 gallon drum, net fill 50   ASTM D2369
                                      gallons (189 liters)
                                                                   Total Solids by Volume,                  99.99%
            Color                                                  ASTM D2697
            Grey,  Tan, or custom color.
            Not a stock item. Minimum order of 250 gallons (945 liters)   Viscosity at 75°F (24°C)   6500 ± 2000 cps
            is required. See color chart for special provisions. Contact
            Polycoat Products for more information.                Volatile Organic
            Surface Preparation                                    Compounds,                            <0.08 lb/gal
            Refer to General Guidelines for complete information.  ASTM D-2369-81                      <10 gm/liters
            Mixing
            Before application, mix PC-440SF using a mechanical mixer at
            slow speed. Mix PC-440SF thoroughly until a homogeneous
            mixture and color is attained. Use care not to allow the   adhesion between coats, it is imperative that re-coating be
            entrapment of air into the mixture. Do not mix in an up and   done within 48 hours.
            down motion.
                                                                 Curing
            Application                                          At 75°F (24°C) and 50% relative humidity, allow coating to cure
            For best results, use a squeegee or notched trowel. A phenolic   16 hours before proceeding to subsequent coats. Cure time
            resin core roller may be used but extra care should be taken   will vary depending on temperature and humidity. If more
            not to trap air which may result in bubbles.         than 48 hours passes between coats, re-prime the surface
            Requires a continuous coating application to minimize lines   with Polyprime U before proceeding.
            and/or streaking.                                    If accelerated curing is required, add one quart of PC-50 in a 5
            It is recommended to apply an aggregate of washed, dry,   gallon pail of PC-440SF and mix thoroughly. This accelerated
            rounded sand, approximately 16 or 20 mesh (0.84-1.19 mm),   PC-440SF will cure in 6-8 hours at 75°F (24°C) and 50% relative
            6.5+ Moh’s minimum hardness at a rate of 20 lbs/100 sqft (1   humidity.  If PC-50 Accelerator is used then re-coat should be
            kg/sqm) or as required to achieve a slip-resistant finish, into   done within 12 hours after cure. If re-coat window has passed,
            the wet second coat, covering it completely. Broadcast sand   then solvent wipe the surface with VOC compliant solvent and
                                                                                             ®
            until refusal and when the coating is dry, remove extra loose   re-prime surface with Polyprime  U.
            sand, preferably by vacuum.                          PC-440SF is very sensitive to heat and moisture. Higher
            Most applications require two coats. To achieve proper   temperatures and/or high humidity will accelerate the cure



        POLYCOAT PRODUCTS TEL 562.802.8834  |  FAX 562.921.7363                                           Section 6.9
        wpsales@polycoatusa.com  |  www.polycoatusa.com
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