3M 7010378521 Aluminum Foil Tape 6 in 60 Yd Acrylic

Product Description

The 3M 7010378521 is a dead soft aluminum foil tape coated with a pressure-sensitive acrylic adhesive, designed for heat shielding, heat reflecting, seaming, sealing, chemical masking, and de-paint operations. The tape measures 6 inches wide and 60 yards long per roll. The aluminum foil backing is thermally conductive, helping dissipate heat and improve thermal efficiency in installations where temperature-sensitive materials need protection. The acrylic adhesive bonds durably over the long term but releases cleanly after demanding masking applications. It withstands exposure to flame, moisture, weathering, and UV, making it suitable for both interior and exterior service conditions.

This tape is used across HVAC, aerospace, sheet metal, and general industrial applications. In HVAC work, it is commonly applied to seal and seam ductwork, wrap insulation, and provide heat shielding around sensitive components. The dead soft aluminum foil backing conforms to curved and irregular surfaces, allowing clean installation on duct transitions, fittings, and equipment housings. Chemical masking and de-paint operations in manufacturing environments also rely on this tape for surface protection during harsh process steps.

Key Features

• Dead soft aluminum foil backing conforms to curved and uneven surfaces for clean, gap-free application
• Thermally conductive construction dissipates heat and improves heating and cooling efficiency
• Pressure-sensitive acrylic adhesive bonds durably long term and removes cleanly after masking use
• Resistant to flame, weathering, moisture, and UV exposure
• Heat and light reflective surface protects temperature-sensitive materials and enhances lighting efficiency
• UL Recognized to UL 746C and UL Classified to UL 723, Class L low flammability rating

Compatibility

Designed for use in HVAC duct sealing, insulation seaming, heat shielding, chemical masking, and de-paint operations across industrial and mechanical trade applications.

Installation Notes

Apply to clean, dry surfaces free of dust, oil, and loose material for maximum adhesion. In HVAC duct applications, follow SMACNA guidelines for tape placement and seam sealing. Do not stretch the foil backing during application, as this can reduce conformability and adhesive contact. Handle the roll and core carefully to avoid deformation that could affect unwind performance.

Technical Specifications

• Width: 6 inches
• Length: 60 yards
• Backing Material: Dead soft aluminum foil
• Adhesive Type: Pressure-sensitive acrylic
• Color: Silver
• Unit of Measure: Roll
• Package Weight: 8.862 pounds
• Package Length: 16.2 inches
• Package Width: 6.8 inches
• Package Height: 6.8 inches
• UL Recognition: UL 746C
• UL Classification: UL 723, Class L
• UPC: 051128998415

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010378521