Stone and Concrete Impregnator is a water-based, high grade, one step, multi-purpose impregnating sealer. It is solvent free, and highly vapor permeable. It provides exceptional protection against water, dirt, ice, grease and oil. For interior and exterior use on all natural and man-made surfaces regardless of surface finish. Free of silicone and waxes, our Impregnator bonds with the stone making it highly suitable for food courts, food service areas and kitchens. Sweeps rain water off of outdoor surfaces preventing slips. Makes cleaning and maintaining surfaces easy. Leaves a natural, "un-sealed" appearance to the surface.