• UL 181 B-FX Listed pressure sensi­tive tape with a 2 mils. dead soft aluminum backing, and 15 mils. of butyl rubber adhesive with a plastic release liner

• Seal all types of HVAC duct systems including metal (galvanized, aluminum, stainless), fiberglass duct board, and flexible duct.

• Use any­where a weatherproof, or airtight seal is required