Designed for use in coves, corners, changes in plane and expansion joints associated with exterior and interior applications of tile and stone. Can be used in pools and other wet area applications. Conforms to ASTM C-920, Type S, Grade NS, Class 25, Use T, I, M and G and ASTM C-794 properties. Material will stain some stones. Test small area before installation. IMPORTANT: Commercial 100% Silicone Caulk is not a paintable surface. Painting should be done prior to installation.