Premium 3M aluminum foil tape with acrylic adhesive for heat shielding, chemical masking, and thermal management. 6 inches wide, 360 yards long, UL recognized, rated -65°F to 300°F.
3M™ Aluminum Foil Tape 427 is a premium industrial-grade foil tape designed for demanding heat shielding, heat reflecting, and chemical masking applications across aerospace, automotive, appliance, and general industrial sectors. Featuring a dead soft aluminum foil backing with a highly engineered pressure-sensitive acrylic adhesive, this linered version of the 3M™ Aluminum Foil Tape 425 is ideal for die cutting applications and provides exceptional thermal conductivity to dissipate heat and reduce hot spots. The tape measures 6 inches wide by 360 yards long with a total thickness of 4.6 mil, offering superior performance in extreme temperature environments ranging from -65°F to 300°F (-54°C to 149°C).
This thermally conductive tape is engineered to improve heating and cooling efficiency while protecting temperature-sensitive materials from thermal damage. The highly engineered acrylic adhesive provides long-term durability and maintains a strong, reliable bond even when exposed to high heat and humidity. It is resistant to chemicals, making it ideal for de-paint processes and other chemical masking operations. The tape withstands exposure to flame, weathering, moisture, and UV radiation, ensuring excellent performance both indoors and outdoors. The dead soft aluminum foil backing conforms easily to curved and uneven surfaces, making application straightforward on complex geometries.
Recognized by UL to UL 746C and classified by UL to UL 723 Class "L" for low flammability rating, this tape meets FAR 25.853(a) specifications and is certified to meet L-T-80C standards. With an elongation at break of 6% and tensile strength of 28 lb/in, the tape demonstrates excellent mechanical properties for demanding industrial applications including heat shielding of delicate parts, light reflecting for enhanced lighting efficiency, chemical milling, seaming and sealing, refrigerator and freezer coil attachment, and wiring harness attachment.
Key Features
- Thermally conductive dead soft aluminum foil backing dissipates heat and reduces hot spots
- Highly engineered acrylic adhesive provides long-term durability and clean removal after masking
- Resistant to chemicals, flame, weathering, moisture, and UV radiation for indoor/outdoor use
- Linered version suitable for die cutting applications with easy release film backing
- UL recognized to UL 746C and classified UL 723 Class L for low flammability rating
- Conforms to curved and uneven surfaces for versatile application on complex geometries
- Temperature range -65°F to 300°F (-54°C to 149°C) for extreme environment protection
- Heat and light reflective properties enhance lighting efficiency and thermal protection
- Meets FAR 25.853(a) specifications for aerospace and aviation applications
- Ideal for heat shielding, chemical milling, sealing, and refrigeration coil attachment
Technical Specifications
| Specification |
Value |
| Product Number | 427 |
| Brand | 3M™ |
| Backing Material | Dead Soft Aluminum Foil |
| Adhesive Type | Acrylic, Pressure-Sensitive |
| Overall Width | 6 inches (152.4 mm) |
| Overall Length | 360 yards (329.184 m) |
| Total Tape Thickness | 4.6 mil (0.117 mm) |
| Backing Thickness | 2.8 mil (0.07 mm) |
| Adhesive Thickness | 1.8 mil (0.05 mm) |
| Primary Liner | Easy Release Film, 3.1 mil (0.08 mm) thick |
| Tensile Strength | 28 lb/in (49 N/100mm) |
| Elongation at Break | 6% |
| Minimum Operating Temperature | -65°F (-54°C) |
| Maximum Operating Temperature | 300°F (149°C) |
| Product Color | Silver |
| Smallest Saleable Unit | Roll (1 Roll/Case) |
| UPC Code | 00051128998595 |
| 3M ID | 7010337278 |
| UL Recognition | UL 746C (File E 122798) |
| UL Classification | UL 723 Class L - Low Flammability |
| Specifications Met | FAR 25.853(a), L-T-80C |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military, Military & Government, Specialty Vehicles, Transportation |
| Recommended Applications | Heat shielding, Heat reflecting, Chemical masking, Moisture barrier, Light reflecting, Chemical milling, Seaming and sealing, Refrigerator and freezer coil attachment, Splicing, Plastic protection |
Order 3M Aluminum Foil Tape 427 LT80 Silver 6 inch at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
