3M™ Aluminum Foil Tape 437 features a dead soft, aluminum foil backing with an acrylic, pressure-sensitive adhesive on a polycoated kraft paper liner. It utilizes a high tack adhesive which allows for quick and easy application on assembly lines. With a pressure-sensitive, acrylic adhesive designed to OEM requirement, Aluminum Foil Tape 437 adheres well to irregular and uneven substrates. The durable foil backing offers ideal properties for a long, serviceable life indoors and outdoors. This tape is light and heat reflective, plus it resists flame, moisture, weather and UV degradation. It is a chemical resistant, thermally conductive tape that performs consistently at temperatures ranging from -40 °F/-40 °C to 212 °F/100 °C.