3M venture tape ul181a-p aluminum foil tape 1581a is a high-strength, ul printed aluminum foil adhesive that creates a vapor seal for various sealing, masking and rigid duct board applications. This cold-weather resistant adhesive offers reliable performance in temperatures that range from -40 f/-40 c to 300 f/149 c. The acrylic, pressure-sensitive coating also provides excellent moisture and uv resistance. The aluminum-backed tape also resists lifting and curling and is hand-tearable – just pull the size you need and get the job started. Its durability and excellent conformability make this adhesive perfect for use on irregular surfaces and on materials such as faced fiberglass. This tape meets ul181a-p and ul181b-fx listed and ulc s102 classified flame/smoke 0/0 specifications. 3M venture tape ul181a-p aluminum foil tape 1581a provides the reliable hold you need during sealing and masking applications.