Aluminum Foil Tape 4380

3M's aluminum foil tape 4380 is a self-wound, general purpose, aluminum foil-backed tape combined with a pressure sensitive acrylic adhesive. This tape is ideal for general purpose sealing, holding, splicing, or masking applications requiring the protection from heat or flame offered by a foil backing.

The aluminum foil tape 4380 is a general purpose aluminum foil tape comprised of a 2.0 mil dead soft aluminum foil backing and a pressure sensitive acrylic adhesive. This tape is malleable and conforms well to uneven, curved, or irregular surfaces. The aluminum backing offers an excellent reflective surface and is thermally and heat conductive for heating and cooling efficiency. It reflects light to enhance lighting efficiency and resists flame, moisture, weather, dust, UV degradation, and many chemicals to provide long-lasting durability.