NEOCRYL A-639 is an acrylic styrene copolymer emulsion that provides excellent performance in clear and pigmented coatings. As a 45% solids emulsion, NEOCRYL A-639 offers good pigment tolerance and can be used as a grinding resin to formulate high-solids coatings. It delivers a clear, hard film with good adhesion to various substrates like plastics, metals and wood. NEOCRYL A-639 requires the addition of coalescent and plasticizers for proper film formation. It is compatible with various resin technologies like acrylic emulsions, urethane dispersions and alkyds. NEOCRYL A-639 improves the drying and performance of various coating formulations. Its high-gloss and water resistance properties make it suitable for applications that require durability and longevity in harsh environments.