3M Aluminum Foil Tape 3381 is a 1.4 mil high-strength, dead-soft aluminum foil tape coated with an acrylic pressure sensitive adhesive. This aluminum foil tape is designed for applications in cold weather conditions and excels in humidity, delivering good performance and long-lasting durability in demanding environments.A 1.4 mil high-strength, dead-soft aluminum foil tape, 3M Aluminum Foil Tape 3381 is coated with an acrylic pressure sensitive adhesive that performs well in a wide range of temperatures. Designed for cold weather conditions, our Aluminum Foil Tape 3381 excels in demanding temperature and humidity applications. This aluminum tape has superior U.V. resistance, providing good performance and durability in demanding environments. The general purpose aluminum foil backing serves as an excellent barrier against moisture, dust, flame and certain chemicals. The malleable foil is conformable and applies easily to fibrous and sheet metal ducts and other irregular surfaces.3M Aluminum Foil Tape 3381 can be used across many industries.