Description

Black Jack Silicone rubber Roof Sealant, Patch & Repair is a heavy duty vertical/horizontal grade, white silicone rubber sealant. Black Jack has exceptional adhesion and flexibility and is compatible with most building materials. Apply to dry surfaces only. In hot or cold climates, this waterproof seal will permanently stretch to prevent cracking and peeling. This product has exceptional adhesion and flexibility. 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. Summary: Weatherproof, Sun-proof, Freeze-proof, Permanently Flexible, 30-minute rain-ready, Permanently waterproof, Quick Curing. 50 Year Mfg Guarantee – will not shrink, crack, break down or wash away.