3M Aluminum Foil Tape, 4.6-mils Thick, 50.8 mm (2") x 55 m (180')
- Thermally conductive tape helps dissipate heat and improves heating and cooling efficiency to protect temperature-sensitive materials
- Resistant to chemicals to protect surfaces during the de-paint process and other chemical masking operations
- Highly engineered acrylic adhesive provides long-term durability but removes cleanly after harsh masking applications
- Withstands exposure to flame, weathering, moisture, and UV
- Heat and light reflective tape protects surfaces and enhances lighting efficiency
- Dead soft aluminum foil backing conforms to curved and uneven surfaces
- Recognized by UL to UL 746C and Classified by UL to UL 723, Class "L" for low flammability rating
3M™ Aluminum Foil Tape 425 is the go-to foil tape for numerous applications across a broad range of industries. Comprised of a dead soft aluminum foil backing and coated with a highly engineered pressure-sensitive acrylic adhesive, it is ideal for heat shielding, heat reflecting, chemical masking, light enhancement, chemical milling, seaming, sealing, and de-paint operations.
Withstands Exposure to High Heat and Humidity Consisting of a dead soft, thermally conductive aluminum backing, 3M™ Aluminum Foil Tape 425 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 (up to 300°F/149°C) 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. Recommended Applications • Heat shielding of delicate parts • Heat reflecting • Masking in chemical paint stripping applications • Moisture barrier • Light reflecting for light enhancement • Chemical milling • Seaming and sealing • Refrigerator and freezer coil attachment • Splicing of thin gauge foils • Plastic protection 3M™ Aluminum Foil Tape 425 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 can be certified to meet L-T-80C and meets F.A.R 25.853(a). Temperature use range is from -65° to 300°F (-54° to 149°C).
Typical properties Details| Adhesive Type | Acrylic |
| Application | Dryer Blower Housing Sealing, EMI RFI Shielding of Seams, Maximize Cooling Efficiency of Refrigerators, Painting, Sealing Plate Edges Against Solvent Penetration, Shielding From Engine Heat, Stripping, Wiring Harness Attachment |
| Back Side Adhesive Thickness (Imperial) | 1.8 mil |
| Back Side Adhesive Thickness (Metric) | 0.05 mm |
| Backing (Carrier) Material | Aluminum Foil |
| Backing (Carrier) Thickness (Imperial) | 2.8 mil, 4.6 mil |
| Backing (Carrier) Thickness (Metric) | 0.07 mm, 0.117 mm |
| Backing Material | Aluminum Foil |
| Brands | 3M™ |
| Elongation at Break | 6.0 % |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicle, Transportation |
| Maximum Operating Temperature (Celsius) | 149 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 300 ℉ |
| Minimum Operating Temperature (Celsius) | -54 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -65 ℉ |
| Primary Liner | Easy Release Film |
| Product Color | Silver |
| Rolls per Case | 12 |
| Shelf Life | 24 Months, 24 none |
| Smallest Saleable Unit | Roll |
| Specifications Met | FAR 25.853(a), L-T-80C, SAE-AMS-T-23397 |
| Tensile Strength (Imperial) | 28.0 lb/in |
| Tensile Strength (Metric) | 49 N/100mm, 49 N/cm, 490 N/100mm |
| Total Tape Thickness without Liner (Imperial) | 4.6 mil |
| Total Tape Thickness without Liner (Metric) | 0.12 mm |
| Units per Case | 1.0,24.0,2.0,12.0,48.0 |
| eClass 14 Classification Group | 27140708 |
| Overall Length (Imperial) | 36 yd, 60 yd, 60.14 yd, 60.148 yd, 60.149 yd, 180 yd, 180.446 ft |
| Overall Length (Metric) | 10 m, 32.918 m, 54.86 m, 54.864 m, 54.9 m, 55 m, 164.59 m, 200 m |
| Overall Width (Imperial) | 0.25 in, 0.39 in, 0.472 in, 0.5 in, 0.625 in, 0.74 in, 0.75 in, 0.8 in, 0.97 in, 0.984 in, 1 in, 1.25 in, 1.49 in, 1.5 in, 1.75 in, 1.95 in, 1.96 in, 2 in, 2.375 in, 2.5 in, 2.92 in, 3 in, 3.15 in, 3.5 in, 3.78 in, 3.97 in, 4 in, 4.5 in, 4.87 in, 5 in, 5.078 in, 5.85 in, 6 in, 6.69 in, 7 in, 8 in, 9 in, 10 in, 11.81 in, 11.89 in, 12 in, 15.75 in, 23.62 in, 24 in, 36 in, 39.37 in, 48 in |
| Overall Width (Metric) | 1.3 cm, 1.9 cm, 2.5 cm, 3.8 cm, 5.1 cm, 6.35 mm, 7.6 cm, 10.2 cm, 12 mm, 12.7 mm, 15.2 cm, 15.875 mm, 19 mm, 19.05 mm, 20.3 cm, 25 mm, 25.4 mm, 25.4 cm, 30.5 cm, 31.75 mm, 38 mm, 38.1 mm, 44.45 mm, 50 mm, 50.8 mm, 60.325 mm, 63.5 mm, 75 mm, 76.2 mm, 80 mm, 88.9 mm, 96 mm, 101.6 mm, 102 mm, 114.3 mm, 125 mm, 127 mm, 128.98 mm, 150 mm, 152.4 mm, 170 mm, 177.8 mm, 228.6 mm, 254 mm, 300 mm, 305 mm, 400 mm, 600 mm, 609.6 mm, 914.4 mm, 1000 mm, 1219.2 mm |