KEIM CONCRETAL® W High-Performance Sol-Silicate Finish for Concrete is a protective concrete paint system. This product can penetrate and form covalent chemical crystalline bonds with the concrete. KEIM CONCRETAL W offers the highest level of water repellency and weather protection coupled with outstanding application properties and is very low maintenance. It contains only lightfast inorganic pigments and mineral fillers, so colors will stay true without fading. It is highly alkali and efflorescence resistant and can be applied to concrete surfaces with a pH of 6— 13.