Granite Gold Sealer, an easy-to-apply spray or wipe stone sealer, creates a barrier to protect granite, marble, travertine, limestone, slate, grout, and all other natural stone against stains from oil, water, coffee, wine, and other liquids. Easily maintain maximum surface protection against etches and soil build-up on countertops, floors, and other natural-stone surfaces. Granite Gold Sealer contains no phosphates or ammonia and is pH balanced and safe to use on surfaces where food is prepped. Regularly check the integrity of the seal with an at-home water test. Pour water (about three inches in diameter) on the surface in several locations and let it sit for 30 minutes. If you see a dark mark or ring, the water is penetrating the stone and it is time to reseal. Granite Gold is a family-owned company with three generations of expertise in stone care, dating back to the 1950s. The Granite Gold collection of products is unsurpassed in expertise, passion, and quality, protecting your natural stone like no other product.