The Armor SX5000 is a PRO-Grade solvent-based Silane Siloxane water-repellent sealer. It penetrates deep into the substrate where it chemically reacts to form a hydrophobic barrier within the pores that reduces surface water absorption by up to 95%. The Armor SX5000 is made from high-quality, non-recycled, US-manufactured resins. It is designed for unsealed concrete, brick, pavers, natural stone, and porous masonry. It works entirely below the surface, won’t change the look or color of the substrate, and won’t leave a surface film. By reducing surface water absorption, cracking, spalling, pitting, mold, mildew, algae, staining, and other damage and deterioration caused by surface water absorption will also be reduced.