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.