It is easily applied with an airless spray or roller. Weatherlastic Smooth is based upon a 100% acrylic, copolymer elastomeric resin, which provides excellent elongation and flexibility at low temperatures and after weathering. The coating resists mildew growth and dirt pickup and is highly chalk-resistant. Weatherlastic Smooth is recommended as a waterproof coating on properly prepared concrete, masonry, EIFS and stucco substrates. Check out Dryvit's Weatherlastic Smooth data sheet pdf for more information.