Polyurethane 250 is a two component, low viscosity acrylic urethane. It is used as a primer/sealer over a variety of surfaces. The use of special solvents and adhesion promoters gives this material excellent penetration and adhesion to minimally profiled concrete. Polyurethane 250 is U.V. stable for use in exterior applications, cures rapidly and is easily re-coated with both solvent-based and water-based polyurethanes. When used as a finish coat, this material gives a hard, high gloss surface that offers excellent stain resistance and easy clean-ability. Compared to solvent-based acrylic sealers, Polyurethane 250 offers substantial improvements in initial gloss, gloss retention and overall performance. Polyurethane 250 is available in a satin finish if a lower gloss is desired. A special version of this material is available to meet the 50 grams/liter VOC limit in California.