Clean and dry the application surface thoroughly before use; peel the release liner slowly and evenly; cut the tape with tools (do not tear it) to ensure sealing effect Reliable Adhesive Butyl Sealant Tape: 2"x90' double sided butyl tape is made of high-quality butyl, with reliable adhesion, durability and moisture resistance. Properly installed, it stays stable in high temperatures (no melting/leaking) and flexible in cold (no easy hardening/cracking), ensuring effective sealing Widely Applicable: Ideal for crawl space wall liners, home repairs, RV windows, deck boats, vapor barrier encapsulation and other home/vehicle sealing needs Excellent Weather Resistance: With strong stability, it resists melting and water leakage in high temperatures, and won't easily harden or crack in cold, maintaining low-maintenance professional sealing Good Adhesion & Easy Installation: It adheres well to unpainted surfaces (limestone, bricks, concrete) for crawl space encapsulation. Install easily even in narrow corners; cut (don't tear) for optimal results Bghdas - 1 Pack Butyl Sealant Tape 2" X 90' - Double Sided - Black Vapor Barrier Butyl Tape for Wall of Crawl Space, Rv Windows, Deck Boat, Crawlspace ( Waterproof, Weatherproof)