Custom Building Products TLSGSPT TileLab SurfaceGard Penetrating Sealer SurfaceGard with Teflon Surface Protector provides unsurpassed, invisible protection for marble, stone, porcelain, quarry and Saltillo tile, grout, concrete, and masonry 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 This item is not for sale in Catalina Island