Seal Once Multi-Surface Concentrate Wood and Masonry Sealer gal

SEAL-ONCE has been leading the innovation in the use of nanotechnology to create long-lasting, eco-friendly wood sealers & tinted wood stains since 2005.  Multi-Surface Concentrate with NANO deeply penetrates the surface to protect & stabilize wood, concrete & masonry against adverse weather & caustic conditions, including salt water spray.  It uses proprietary nano-polymers to form a flexible, breathable barrier by coating the wood fibers and concrete pores, preventing water ingress.