Alliance Gator GATORSEAL03 5 gal Gator Signature Series Natural Look Water Based Sealer - This Signature Series Natural Look Sealer is made from fluorochemical polymers. It is used to seal concrete pavers, walls, masonry and natural stones. It penetrates deep, thus reducing the oil and dirt penetration, as well as protecting them from the corrosion of de-icing salt and the effects from UV rays.