Withstands Exposure to High Heat and Humidity
Consisting of a dead soft, thermally conductive aluminum backing, 3M Aluminum Foil Tape 431 dissipates heat over the surface of the tape to reduce hot spots and protect the substrate from the effects of high temperatures. Coated with our highly engineered acrylic adhesive, it is capable of withstanding exposure to high heat and humidity while maintaining a strong and reliable bond. This tape can withstand a variety of moisture, weathering, UV and solvents in order to provide an excellent work life, indoors or out.
3M Aluminum Foil Tape 431 is Classified by UL to UL 723 “L” for low flammability rating (File R 7311). It meets F.A.R 25.853(a). Temperature use range is from -65? to 300?F (-54? to 149?C).
Recommended Applications
- Heat shielding of delicate parts
- Heat reflecting
- Moisture barrier
- Light reflecting for light enhancement
- Seaming and sealing
- Refrigerator and freezer coil attachment
- Plastic protection against heat and UV exposure

3M 50730, PPS UV Standard Lid & Liner Kit, Standard (22 fl oz, 650
mL), 125 Micron Filters, 7100067511
3M 16298, PPS Lid & Liner Dispenser: Mini & Micro, 7100042777
3M 16299, PPS Lid Dispenser: Large, Standard, or Midi, 7100042072
3M 16200, PPS Disposable Lids, Standard and Large, 200 Micron Filter,
25 lids per case, 7000119740
3M 46902, No Residue Duct Tape 2420, 1.88 in x 20 yd (48 mm x 18.2 m), 7100334374
3M 84167, Hookit Microfinishing Film Disc 366L, 60 Mic 3MIL, Type D, 5 in x NH, Die 500X, 7000118550, 500 ea/Case
3M 89633, Fibre Disc 787C, TN Quick Change, 4-1/2 in 36+, 7100099291
3M 18081, Scotch-Brite Roloc SE Surface Conditioning Disc, SE-DR, A/O Coarse, 18081, 2714483, TR, 2 in, 7000046111, 200 per case
3M 05058, Cubitron II Hookit Clean Sanding Film Disc 775L, 400+, 5 in, Die 500LG, 7100145404, 250 per case
3M 14032, Cartridge Roll 341D, P120 X-weight, 1/2 in x 1-1/2 in x 1/8 in, Full Tapered, 7010327456 
