3M Venture Tape aluminum foil tape 1521CW is a high strength, dead soft aluminum foil tape coated with a cold weather pressure sensitive acrylic adhesive. This tape excels in demanding temperature and humidity applications and is designed for vapor sealing applications on ductwork and exterior insulation materials. 3M Venture Tape aluminum foil tape 1521CW is a 1.4 mil, high strength, dead soft aluminum foil tape that excels in demanding temperatures and humidity applications. This tape offers superior resistance to weathering, mold, UV and extreme environmental conditions. A dead soft aluminum backing conforms around corners and to curved and irregular surfaces with ease. It is an ideal choice for applications on fibrous and sheet metal ductwork. The tape is hand tearable and installs easily, eliminating the need for additional tools or application methods. 3M Venture Tape aluminum foil tape 1521CW is coated with a pressure sensitive cold weather solvent acrylic adhesive specifically designed for cold weather applications. This adhesive performs well in both demanding temperature and humidity applications. It adheres immediately on contact to a variety of materials, including fibrous and sheet metal ducts. With a service temperature ranging from -40 deg F/-40 deg C to 250 deg F/121 deg C, this tape can be applied in a variety of environmental conditions. Once bonded, it will provide good holding power for extended periods with good aging properties that resists lifting and curling. Aluminum is just one of the metal-backed tapes available from 3M. Our foil tapes resist failure from common sources of degradation including moisture, ultraviolet rays and many chemicals and are commonly used for reflecting, wrapping, masking, sealing and more in applications from air ducts to washing machines. As with all 3M products, our 3M Venture Tape aluminum foil tape 1521CW is supported by exclusive 3M technical expertise and application advice. 3M aluminum foil tapes are suitable for demanding applications in construction, aerospace, automotive, appliance, maintenance, repair and operations and many more segments. They are also thermally conductive for heating/cooling efficiency. In our 3M industrial adhesives and tapes division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.