Order this DRYLOK Original Interior/Exterior Basement and Masonry Waterproofer – White Flat Latex for delivery. Seals masonry walls, cinder and concrete blocks, stucco, brick, retaining walls, basements, bird baths and foundations. 5 gal. container waterproofs 500 to 600 sq. ft.. Low-odor latex-based formula dries white and cleans up easily with water. With stands up to 10 lb. of hydrostatic pressure. Dries to the touch in just 1.5 hours to provide quick protection. Use 2 coats to ensure maximum waterproof defense. Ready-to-use formula needs no premixing.