WATERTITE Mold & Mildew-Proof Waterproofing Paint has a unique oil-base formula that combines a state-of-the-art waterproofing resin with Portland cement to create a coating that stops up to 34lbs psi of water pressure. It also contains a mildewcide to prevent the growth of mold and mildew for a minimum of five years after application, making it great for basements and other masonry surfaces where mold and mildew can be problematic. Mold & Mildew-Proof Waterproofing Paint LIFETIME WATERPROOF GUARANTEE Guaranteed to stop up to 34 psi - twice the strength of latex waterproofers Prevents the growth of mold & mildew on the paint film for 5 years - guaranteed! Smooth, non-gritty finish applies easily to wet or dry walls Ultra low odor oil-base formula has even less odor than latex paint Great for basements and other interior/exterior above & below grade masonry surfaces Gallon. Rustoleum / Zinsser Corp