Gardner Gibson 5576-1-20 1's Black Jack White Eterna-Kote Silicone Roof Coating-1PK LANC-368680

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Black Jack Silicone Roof Sealant is a white rubber sealant that provides the ultimate waterproofing protection from the elements. This product has exceptional adhesion and flexibil ity and is compatible with most building materials. Ideal for roof repairs, or on new installations of skylights, windows, doors or vents. In hot or cold climates, this waterproof seal will permanently stretch to prevent cracking and peeling. Cured sealant is mold and mildew resistant. Show more