DRYLOK Floor & Wall Masonry Waterproofer is the first non-pigmented waterproofer specifically formulated on bare masonry floor and wall surfaces. This patent-pending technology provides a durable, waterproof, easy-to-clean, nonyellowing high-gloss finish. It's perfect for waterproofing interior and exterior concrete floors, poured concrete walls, split-faced blocks, concrete and cinder block, stone, brick, stucco, and precast decorative items. In addition, DRYLOK Floor & Wall Masonry Waterproofer incorporates environmentally safe green biocides to resist mildew growth on the dry paint film.