3M™ Venture Tape™ High Temperature Aluminum Foil Tape 3243 features a 2 mil aluminum foil coated with a high temperature, extremely aggressive acrylic adhesive. Specifically designed for high-heat flue and closure applications, this tape excels in demanding temperature applications.

A High Temperature Aluminum Foil Tape
Specifically designed for challenging applications such as flue pipe closures, 3M™ Venture Tape™ High Temperature Aluminum Foil Tape 3243 features a foil backing and an aggressive high-temp solvent acrylic adhesive that performs well in temperatures as high as 425°F/218°C. The foil features high heat reflectivity and thermal conductivity for heating and cooling efficiency and to help protect heat sensitive components. The tape is easy to manipulate and install without special tools or application methods. The foil tape conforms to uneven and curved surfaces for ease of application. In addition, this tape is designed with resistance to moisture, weather, UV and chemicals to offer long-lasting durability. 

3M™ Venture Tape™ High Temperature Aluminum Foil Tape 3243 is UL723 Classified (0/0 Flame/Smoke Rating).

Recommended Applications


Duct closure applications
Flue pipe closure
Demanding temperature applications
Heat shielding applications for welding
Industrial manufacturing facilities
Oil and gas refinery applications


Excels in Demanding Temperatures
3M™ Venture Tape™ High Temperature Aluminum Foil Tape 3243 is coated with a high performance, high temperature, pressure sensitive solvent acrylic adhesive designed to excel in demanding temperature applications. This adhesive bonds to a variety of substrates and the tape applies easily to sheet metal ducts on flat or irregular surfaces. It provides good performance and durability over a wide range of environmental conditions and over a spectrum of temperatures ranging from -40°F/-40°C to 425°F/218°C. 3M™ Venture Tape™ High Temperature Aluminum Foil Tape 3243 is UL 723 listed.

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™ High Temperature Aluminum Foil Tape 3243 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 temperature backing is ideal for duct and flue pipe closure
• Solvent acrylic adhesive performs well in temperatures as high as 425°F/218°C
• High heat reflectivity protects heat-sensitive components
• High resistance to moisture, UV and many chemicals for long-term durability
• Aluminum foil conforms well to irregular shapes and surfaces
• Can be torn by hand for ease of installation
• Features easy release paper liner

• Backing Material: Aluminum Foil
• Color: Silver
• Width: 2.83 in