Duck® All-Purpose 1.88" x 50 yd Aluminum Foil Tape 075353032978

1.5-mil dead soft aluminum foil backing, coated on 1 side with a permanent rubber-based adhesive system, provides lasting durability
Ideal for metal, auto, aluminum repairs and HVAC applications
Combines excellent sealing and protective benefits of aluminum with the ease of handling and application characteristics of a pressure-sensitive tape
Suitable for indoor and outdoor use
Rated for flame spread and smoke development