3M 7100189974 | 50 yd x 2.500" Width Aluminum Tape

The 3M foil tape 3340 is ideal for sealing rigid fiberglass duct boards and flexible air duct systems. This tape meets requirements for UL 181 A-P and UL 181 B-FX Listings as a measure of reliability and quality standards.

3M Foil Tape 3340 forms long-lasting, conformable sealing properties that improve the integrity of rigid fiberglass duct boards. Use this silver, 2.5" wide, 3.9 mil thick tape along with conformable air ducts and connectors to enhance HVAC air systems maintenance. Tape 3340 is also designed for use in many automotive, electronics, metalworking, construction and aerospace industry applications. You'll get a durable seal and excellent closure against vapor through hot and cold temperatures, enhanced by an aluminum foil backing. Reduce or eliminate mechanical fastener use, and improve heating and cooling efficiency with this long-lasting easy-to-apply tape with a permanent acrylic adhesive and convenient liner. 3M foil tape 3340 improves the efficiency, sealing, and thermal properties of air systems in many applications across a broad range of industrial applications.

• Strong Hold: Delivers a strong hold for rigid duct board and flexible duct applications with the aluminum foil backing
• Multi-Climate Use: Withstands extreme temperatures ranging from -40 °F/-40 °C to 300 °F/149 °C
• Conformability: Easily conforms to irregular surfaces for consistent application
• Saves Time: Easy to install without special tools or application methods
• UL Listed: UL181A-P and UL181B-FX listed

Warning:

This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.

For more information, visit www.P65Warnings.ca.gov