Our focus is the development, manufacturing, and distribution of quality products designed to retard building material degradation from the elements or vandals. PROFESSIONAL® Water Sealant has been manufactured since 1987. It is a silicone rubber waterproofing sealer that has been successfully applied to buildings, bridges, highway sound walls, decks, fences, and many other types of above grade surfaces in cities and towns in North America and abroad to protect against water intrusion and/or graffiti.