Herculeshas added the popular fixture color biscuit/linen to its line of plumbers caulk. This line of caulk is specifically formulated for the professional plumber. Spreads easily, and cleans up with soap and water. It forms a flexible, durable, mildew-resistant, waterproof seal indoors or out -- on tubs, tile, showers, walls, windows and doors. also available in white, clear and almond/bone.