3M™ Venture Tape™ Aluminum Foil Tape 1521CW, Silver, 61 in x 180 yd, 2.8 mil, 1 roll per case

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.

High-Strength Performance
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 UL723 classified (10/10 5/10 Flame/Smoke Rating) [UL file #R10984]. It is U.S. Coast Guard Approved (CGA #164.112/63/0).

Recommended Applications


Vapor seal for reinforced fiberglass and mineral wool thermal insulation
Seam and joint sealing on sheet metal and fibrous ductwork


Excels in Demanding Temperature and Humidity Applications
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°F/-40°C to 250°F/121°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.

3M™ Metal Foil Tapes
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.

Bringing Better Ideas to the Surface through Science and Innovation
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.

• High-strength, dead soft aluminum backing is ideal for applications on fibrous and sheet metal ducts
• Cold weather acrylic adhesive applies easily at temperatures well below freezing
• Specifically designed to perform in cold weather applications
• High puncture and tear resistance ensures long life and durability in a variety of applications and environments
• Flexible backing conforms well to curved or irregular surfaces
• Hand tearable and easy to install on site without special tools or application methods

• Color: Silver
• Package Quantity: 1 RLS
• Width: 61 in