Drylok Flat Clear Penetrating Sealer 1 gal

DryLok Siloxane 7 Brick & Masonry Penetrating Sealer is formulated with a 7% blend of Silane/Siloxane to produce an invisible one-coat weatherproof treatment. This special blend provides superior performance and protection against staining, efflorescence, freeze/thaw and hurricane-force wind-driven rain.