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Silver foil tape roll, 2 inches wide by 5 yards long

3M

3M 438 Foil Tape Silver 2in x 5yd HVAC Control

SKU CH-6XZ6-3RJWP

Silver foil tape rated from -65 to 300 degrees Fahrenheit for HVAC, automotive and general repair

  • ColorSilver
  • Withstands extreme heat up to 300°F for reliable sealing
  • Remains flexible down to -65°F in freezing conditions
  • 3M 438 series trusted across automotive and aviation industries
  • 2-inch width covers joints quickly on ductwork and panels
  • 5-yard roll supplies enough length for multiple repairs

3M 438 Foil Tape for HVAC Systems

This aluminium foil tape is designed for sealing and repairing ductwork in heating, ventilation and air-conditioning installations. It suits professional technicians and maintenance teams who need a reliable, code-compliant closure for sheet-metal and flexible ducts.

Temperature Range -65 to 300 Degrees F

The tape maintains adhesion and structural integrity from minus sixty-five to three hundred degrees Fahrenheit. This broad range prevents failure during winter start-ups and summer peak loads without requiring separate cold-weather or high-temperature products.

Continuous Roll Format Simplifies Application

Supplied as a two-inch by five-yard continuous roll, the tape allows installers to cut exact lengths on site, reducing waste and speeding up long seams. The silver finish blends with standard ductwork for a clean, professional appearance.

Highlights

  • Withstands extreme heat up to 300°F for reliable sealing
  • Remains flexible down to -65°F in freezing conditions
  • 3M 438 series trusted across automotive and aviation industries
  • 2-inch width covers joints quickly on ductwork and panels
  • 5-yard roll supplies enough length for multiple repairs

Specifications

Brand3M
ColorSilver

Questions about this item

How do I install the 3M 438 foil tape on a duct, and what step is often missed?

Clean the surface thoroughly, apply the tape with firm pressure, and overlap seams; the step often missed is ensuring the surface is completely dry and free of oil before application.

What maintenance or replacement will the 3M 438 tape need over time?

Inspect the tape periodically for peeling or degradation; replace any sections that have lost adhesion or show damage from temperature cycling between -65 and 300 degrees F.

At what temperature limit does the 3M 438 tape fail first under sustained heat?

The maximum performance temperature is 300 degrees F; sustained exposure above this limit will cause the adhesive and foil to degrade and fail.

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