3M Aluminum Foil Tape 3340 - HVAC Sealing and Patching - 2.5 x 50 yd

3M Foil Tape 3340 is a high-quality sealing solution that enhances the durability and integrity of rigid fiberglass duct boards. With a width of 2.5 inches and a thickness of 3.9 mil, this silver tape provides long-lasting and conformable sealing properties. It is specifically designed to be used with conformable air ducts and connectors to optimize HVAC air systems maintenance.

In addition to HVAC applications, Tape 3340 is versatile and can be utilized in various industries including automotive, electronics, metalworking, construction, and aerospace. It has dual UL181A-P and UL181B-FX listings, ensuring reliability and quality performance. The aluminum foil backing of the tape provides a durable seal and excellent closure against vapor, even in extreme hot and cold temperatures.

By utilizing 3M Foil Tape 3340, you can reduce or eliminate the need for mechanical fasteners, ultimately improving the efficiency of heating and cooling systems. The tape features a permanent acrylic adhesive and a convenient liner for easy application. Its exceptional sealing and thermal properties make it an ideal choice for enhancing air systems in a wide range of industrial applications.

This vapor seal tape boasts a 2.0 mil aluminum foil backing (4.0 mil total thickness) with a strong, pressure-sensitive acrylic adhesive, making it perfect for duct closure. The combination of the foil backing and acrylic adhesive allows the tape to withstand temperatures ranging from -40F to 300F (-40C to 149C).

The easy releasing poly coated Kraft paper liner protects the adhesive, ensuring the tape remains in optimal condition until ready for use. With its excellent moisture, dust, and chemical barrier properties, the foil backing of Tape 3340 makes it a long-lasting and reliable sealing solution for various applications including HVAC, duct closure, vapor seal on reinforced fiberglass duct board, rigid fiberglass duct board, flexible air ducts, and air connectors.

Overall, 3M Foil Tape 3340 is a versatile and efficient solution for improving the sealing, efficiency, and thermal properties of air systems across different industries. Its quality construction and reliable performance make it a valuable asset in ensuring the integrity and longevity of duct systems.

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