Preserve natural stone, concrete, slate, pavers, stucco, plaster and other masonry with a repellent that is clean and environmentally safe. SURFACE SEAL is a water based penetrating treatment that provides a durable breathable filmless barrier beneath and on the surface of treated materials. SURFACE SEAL is not affected by UV rays and will preserve the original look of the surface by preventing liquid/contaminate penetration. Bond ability and surface traction quality are enhanced by SURFACE SEAL.