DRYLOK Siloxane 7 Brick & Masonry Penetrating Sealer
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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.