12-Pack of 1 gal Zinsser OK921 Clear Okon, W-2 Water-Repellent Sealer Porous Surface

OKON W‐2 Water Repellent Sealer is a proprietary blend of acrylic micro emulsions and a silane‐siloxane solution. The micro‐emulsions penetrate the surface to establish a water repelling barrier in the subsurface of the concrete and masonry. OKON W‐2 helps protect porous concrete and masonry ‐ medium and normal weight block, rough stucco, non‐glazed concrete brick and nonglazed slump block and other comparably porous materials from the damaging effects of water absorption ‐ efflorescence, freeze‐thaw damage, dusting and staining. Its unique blend of acrylic micro emulsion, a proprietary water repellent and silane/siloxane penetrates and protects the substrate while being highly permeable to water vapor.