The Armor WL550 Enhancer Sealer PRO is a solvent-based silicone water repellent sealer that will protect the surface, and enhance it with a matte wet look finish. The WL550 Enhance Sealer PRO works entirely below the surface and will not leave behind a visible surface film, shine, or gloss. It chemically reacts below the surface to form a water repellent barrier within the pores that will reduce staining and deterioration caused by the absorption of water and other liquids on the surface. The Armor WL550 is designed for UNSEALED concrete, brick, dense pavers, flagstone, aggregate, and natural stone. 5 Gallons will cover up to 875 FT2 in one coat. Coverage will vary depending on porosity. Actual level of enhancement will depend on several factors including surface type and porosity. Overly porous concrete or paver surfaces should instead be sealed with the Armor AR350 wet look sealer for a deeper enhancement.