Withstands Exposure to High Heat and Humidity
Consisting of a dead soft, thermally conductive aluminum backing, 3M Heavy Duty Aluminum Foil Tape 438 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 438 is UL Recognized to UL 746C (File E 122798) and 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
- Seaming and sealing
- Refrigerator and freezer coil attachment
- Plastic protection against heat and UV exposure

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3M 64935, Scotch-Brite Hand Pad 7448 PRO, PO-HP, SiC Ultra Fine, 6 in x 9 in, 7100023340, 20/Carton
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
Standard Abrasives 882115, A/O Unitized Wheel, 821, 2 in x 1/2 in x 1/4 in, 7010310376
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 77512, Cloth Belt 777F, 60 YF-weight, 1 in x 42 in, Film-lok, Single-flex, 7010307736, 200 per case
ACS CX1250 Diamond Belt, 1/2" X 24" 20u
3M 08017, Marine Grade Silicone Sealant, White, 3 oz Tube, 7000120479, 6/Case
ACS Diamond Cloth Belt, CX1250 3/8" X 24" 75U
3M 42840, Electrically Conductive Single-Sided Tape 1050TC-25, 100 mm x 10 m, 8 Rolls/Case, 7100313409
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721 
