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 300F (-54 to 149C).
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 71346, 675L, 1" X 120", 125u, Diamond Microfinishing Film Belts, 7010534823
3M 70894, 641WY 1/2" X 24", 100 Mesh Diamond Cloth Belt, 7010533228
3M 87261, Scotch-Weld Epoxy Adhesive DP100, Clear, 400 mL Duo-Pak, 7000121318, 6/case
Standard Abrasives 713218, A/O Straight Cartridge Roll, 5/8 in x 1-1/2 in x 1/8 in 60, 7100102807
3M 23897, Cloth Belt 777F, 60 YF-weight, 1 in x 18 in, Fabri-lok, Full-flex, 7010307894, 200 per case
Insize 4209-1, LONG HANDLE TELESCOPING GAGE, 5/16 ~ 1/2", 6928640311536
Standard Abrasives 873273, S/C Unitized Wheel, 732, 6 in x 1/4 in x 1/2 in, 7010301203
3M 20911, PSA Cloth Disc 348D, 50 X-weight, 2 in x NH, Die 200P, 7000118871
3M 22972, Disc Holder Adapter 9, 5/8-11 External M10-1.50 Internal, 7000046095
3M 22971, Disc Holder Adapter 9, 5/8-11 External M10-1.25 Internal, 7000046094
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Standard Abrasives 32985, Aluminum Oxide Overlap Disc, 714721, 60 Grit, 2 in x 8-32 x 2 Ply, 7100116380 
