Premium adhesive caulk with MICROBAN Antimicrobal Product Protection fights the growth of stain and odor-causing bacteria, mold and mildew on the caulk. Specially formulated siliconized latex provides maximum adhesion and flexibility for a watertight seal. Paintable. Easy water clean-up. Low odor. Backed by a Crack-Proof Guarantee. Installing Tub Surround Caulking Around Tubs And Showers