3M 7100040976 Aluminum Foil Tape 2 in X 55 M Acrylic

Product Description

The 3M 7100040976 is a dead-soft aluminum foil tape with a pressure-sensitive acrylic adhesive, designed for heat shielding, heat reflection, seaming, sealing, and light enhancement across HVAC, electrical, and general industrial applications. The aluminum foil backing conforms to curved and irregular surfaces without cracking or lifting. The acrylic adhesive bonds firmly for long-term service but releases cleanly after temporary masking applications. This tape is rated by UL to UL 723 Class L for low flammability, making it suitable for installations where flame resistance is required. Licensed HVAC technicians, electricians, and sheet metal workers are the primary installers.

This tape is well suited for residential and commercial HVAC duct seaming and sealing, thermal insulation facing, heat shielding around temperature-sensitive components, and light-reflective applications in commercial environments. Its moisture and UV resistance make it appropriate for both indoor and outdoor installations. The roll format with a 2-inch width covers standard duct joints and seams efficiently without trimming in most field applications.

Key Features

• Dead-soft aluminum foil backing conforms to curved and uneven surfaces
• Pressure-sensitive acrylic adhesive delivers long-term durability with clean removal after masking use
• Thermally conductive construction helps dissipate heat and supports heating and cooling efficiency
• Heat and light reflective surface protects adjacent materials and improves lighting efficiency
• Withstands flame, weathering, moisture, and UV exposure
• UL classified to UL 723, Class L low flammability rating

Compatibility

Designed for use in HVAC duct seaming and sealing, thermal insulation jacketing, heat shielding, and general industrial sealing applications where an aluminum foil tape with acrylic adhesive is specified.

Installation Notes

This tape is typically applied by HVAC technicians or sheet metal workers during duct fabrication or insulation work. Surfaces should be clean, dry, and free of dust or grease before application to ensure full adhesive contact. Apply firm pressure along the full length of the tape after positioning to activate the adhesive bond. Follow applicable mechanical and energy codes, such as ASHRAE 90.1 or local duct sealing requirements, when using this tape for duct sealing applications.

Technical Specifications

• Tape Width: 2 inches
• Tape Length: 55 meters per roll
• Backing Material: Aluminum foil (dead soft)
• Adhesive Type: Pressure-sensitive acrylic
• Color: Silver
• Unit of Measure: Roll
• Flammability Rating: UL 723, Class L
• Package Weight: 34.08 pounds
• Package Length: 11.4 inches
• Package Width: 11.4 inches
• Package Height: 14.3 inches
• UPC: 051125853212

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100040976