Sealers/Cleaners Concrete Pavers | Polymeric Jointing Sands | Concrete Adhesives | Water Repellent  | Accessories Water Repellent Techni-Seal Water-Repellent Sealants for Concrete provides excellent protection against water, dirt, salt (calcium) and freeze-thaw cycles. Its active agents (siloxanes) penetrate deeply and chemically react with the material to form an invisible and durable protection. Water Repellent Invisible and penetrating Non-film-forming Protects against salt and frost Prevents the appearence of efflorescence Formats 1 gal. / 121-283 View Technical Data Sheet