Formulated for the plumbing professional; named for the plumbing professional. Siliconized acrylic-latex plumbers caulk. Makes flexible, durable, extremely mildew-resistant, waterproof seal indoors or out on tubs, tile, showers, walls, windows and doors. Excellent adhesive and grout for ceramic metal, and plastic. Flows easily, does not harden in tube or cartridge; will not crumble, and resists shrinkage. Cleans up easily with soap and water. Caulks can be painted with latex or oil base paint after drying for one hour..