A clear waterproofing sealant that protects against moisture damage. Recommended for use on properly prepared exterior surfaces such as concrete, stucco, masonry, grout, mortar, terrazzo, wood, wood shingles, pressure-treated wood, wood decks, outdoor wood furniture. Do Not use on plastic, rubber, vinyl, tile, asphalt or any sealed, nonporous surface. A test application is required to ensure proper absorbency.