SurfaceGard sealer provides unsurpassed invisible protection for marble stone porcelain quarry and Saltillo tile grout concrete and masonry. This long-lasting water-based sealer actually repels dirt oil and stains allowing easy clean-up. Use when maximum protection is required such as in food preparation areas floors and other high traffic areas. Can also be used in place of a grout release prior to grouting to prevent grout staining and facilitate grout clean-up. Low odor pH neutral and nonabrasive. Allows moisture vapor transmission. For interior and exterior use. Use as a sealer or grout release for all stone surfaces unglazed tile some porcelain clay pavers concrete brick masonry and grout. For interior and exterior use. Clean tools and hands with soap and water immediately after use. Size: 24 Oz. Interior/Exterior: Interior/Exterior Coverage: 38 to 225 Sq. Ft. Shelf Life: 24 mo pack of 3