FindTape DSAF2 High Temperature Foil Tape 3 in x 50 yds Silver

HVAC Duct Sealing Tape

This aluminum foil tape is built for HVAC professionals who need reliable sealing of duct joints and connections. The dead soft foil conforms tightly to irregular metal surfaces, creating a durable moisture barrier. It also serves appliance technicians securing wires and sealing canisters. Buyers who need a structural repair tape or a non-metallic masking product should choose a different category.

Sustained Temperature Performance

The tape maintains adhesion across a continuous range from -20 degrees F up to 260 degrees F without degrading. Its aggressive rubber adhesive delivers strong quick stick and lasting holding power through thermal cycling. The release liner protects the adhesive until application, ensuring full bonding strength when installed. Installers working outside this temperature window must select a different sealing method.

2 Mil Dead Soft Foil Construction

The backing uses a 2 mil dead soft aluminum foil that yields a total thickness of 4 mils, allowing the tape to wrap complex curves without spring-back. This specific foil gauge determines whether the tape will bridge gaps and seal seams on the ductwork or equipment at hand. If the application requires a thicker or rigid backing, this product will not meet the requirement.