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Silver aluminum foil tape roll 3/4 inch by 50 yards on release liner

FindTape

FindTape High Temperature Aluminum Foil Tape 3/4 in x 50 yds Silver

SKU CH-GXG6-451JR

High-temperature aluminium foil tape, 50 yards on a liner, conforms to curves and seals ducts from -20 to 260 degrees F

  • Product typeFoil Tape
  • Product colorSilver
  • Handles extreme heat up to 260°F for reliable duct sealing
  • Remains flexible down to -20°F for cold-environment use
  • Dead-soft 2 mil foil conforms tightly to irregular surfaces
  • Aggressive acrylic adhesive delivers strong immediate and lasting bond
  • 50-yard roll on release liner covers large HVAC projects

HVAC Duct Sealing Tape

This FindTape aluminum foil tape is built for HVAC professionals and maintenance crews who need reliable sealing of duct joints and connections. The aggressive acrylic adhesive bonds quickly to metal ductwork and holds securely across wide temperature swings. It also serves well for temporary metal repairs and moisture barriers on drums or canisters.

Temperature Range and Adhesion

The tape operates from -20 degrees F up to 260 degrees F without losing grip, so it stays sealed through heating cycles and cold starts. A 2 mil dead-soft foil backing makes it highly conformable to curved or irregular surfaces, while the 4 mil total thickness resists tearing during application. Quick stick and ultimate adhesion reduce rework on the job.

Build Fit and Handling

Supplied on a release liner, the roll measures 3/4 in by 50 yds, giving enough length for multiple duct runs without frequent roll changes. The dead-soft foil wraps tight corners and flanges without spring-back, freeing installers from fighting stiff tape. No special tools are required beyond a clean surface and firm pressure.

How it compares

Measured against everything we stock in Office, Masking & Packing Tape, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 3,148 comparable items (median $29.99).

Specifications

Product
Product typeFoil Tape
Product colorSilver

Questions about this item

How do I apply the 3/4 in foil tape to a curved duct joint without trapping air bubbles?

Remove the release liner, press the dead soft aluminum foil onto the surface, and smooth it with a roller or firm hand pressure; the foil conforms to irregular shapes so bubbles release as you work.

Will the acrylic adhesive on this 50 yd roll degrade if the duct sees repeated 260 °F cycles?

The adhesive is rated for continuous exposure up to 260 °F and down to -20 °F, so normal HVAC temperature swings stay within its design range.

At what temperature does the 4 mil foil backing start to lose strength during a long furnace run?

The tape is rated to 260 °F; sustained heat above that level is the first limit that can reduce backing and adhesive performance.

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