Flame resistant. Meets U.L. 723, Class "L" low flammability rating (File R 7311)
Meets requirements of F.A.R. 25.853(a)
Foil backing provides an excellent reflective surface for both heat and light
Good aging performance both indoors and outdoors
Low moisture vapor transmission rate offers excellent sealing and patching performance
Best results attained when applied to clean dry surface above 32°F
Conformable tape resists flame, moisture, weather, UV degradation, and many chemicals
Thermally conductive tape reflects and dissipates radiant heat to protect plastic surfaces
Light reflective tape enhances lighting efficiency
Withstands exposure to flame, weathering, moisture and UV
Heat and light reflective tape protects surfaces and enhances lighting efficiency
Classified by UL to UL 723, Class "L" for low flammability rating
3M aluminium Foil Tape 431 and 439L is a 2 mil nominal dead soft aluminium foil with transparent acrylic adhesive for many permanent sealing,holding, splicing or masking applications requiring the protection offered by a foil backing