ROCKSOLID PENETRATING CONCRETE SEALER seals and protects bare concrete and masonry surfaces (including landscaping blocks and concrete pavers) from the damaging effects of water, chemicals, and UV light without changing the appearance of the concrete. The water-base formula deeply penetrates and reacts with the concrete to form a protective barrier beneath the surface to keep water out, protect against stains, and extend the life of your concrete. For use on driveways, patios, walkways, pool decks and more. Invisible in appearance. Stain and chemical resistant. Superior water repellency with NeverWet® properties.