Colorfast Tile and Grout Caulk is easy to use, comes color-matched, and texture-matched for that perfect look around tubs, showers, countertop backsplashes, doors, windows and many other places! Easy, cold water cleanup with just a damp sponge. Colorfast's formula is non-slump, so it's simple to use on vertical installations. When fully cured, Colorfast Tile and Grout Caulk offers superior water and UV resistance and meets ASTM C-834.