Real Seal PLUS activated penetrating concrete treatment. Real Seal Plus penetrates the slab or porous stone and swells, closing off small cracks and openings. Once dry, PLUS prevents moisture and the formation of ice and other liquids that can degrade the surface that is treated. Seals floors, walls, stone, brick, mortar, roof tiles, Mexican tile, Lime stone, Gunnite, Unpainted Plaster and other items subject to deterioration or becoming defective from the results of water or high humidity. REAL SEAL PLUS is colorless, odorless and NON-Toxic. The product solidifies the surface coated into a solid mass, seals, stops leaks and moisture proofs without changing the physical appearance of the surface or structure. Provides years of protection at an extremely reasonable cost. (Note: May require a pre treatment of Real Seal PT. Please see product info for Real Seal PT.