Premium 3M Aluminum Foil Tape 427 with thermally conductive backing and acrylic adhesive for industrial heat shielding, chemical masking, and sealing applications. Temperature range -65°F to 300°F. UL certified for low flammability.
3M™ Aluminum Foil Tape 427 is a premium thermally conductive foil tape engineered for industrial applications requiring superior heat dissipation and chemical resistance. This linered version of the 3M™ Aluminum Foil Tape 425 features a dead soft aluminum foil backing with a highly engineered pressure sensitive acrylic adhesive, making it ideal for die cutting and precision applications. The tape is specifically designed to dissipate heat over its surface, reducing hot spots and protecting substrates from high temperature effects while maintaining a strong, reliable bond even under harsh conditions.
With a temperature use range from -65°F to 300°F (-54°C to 149°C), this tape withstands exposure to high heat, humidity, moisture, weathering, UV radiation, and solvents, providing excellent work life both indoors and outdoors. The 4.6 mil total thickness with 2.8 mil backing and 1.8 mil adhesive layer ensures optimal performance for demanding industrial applications. The aluminum foil backing is heat and light reflective, enhancing lighting efficiency while providing superior thermal protection for temperature-sensitive materials.
This industrial-grade tape is UL Recognized to UL 746C (File E 122798) and Classified by UL to UL 723 "L" for low flammability rating (File R 7311), meeting FAR 25.853(a) specifications. It is ideal for heat shielding, heat reflecting, chemical masking, light enhancement, chemical milling, seaming, sealing, refrigerator and freezer coil attachment, splicing of thin gauge foils, and plastic protection applications across aerospace, appliance, automotive, construction, electronics, and general industrial sectors.
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 harsh masking applications
- Linered version suitable for die cutting and precision industrial applications
- Withstands extreme temperatures from -65°F to 300°F with resistance to flame, weathering, moisture, and UV exposure
- UL Recognized to UL 746C and Classified by UL to UL 723 Class L for low flammability rating
Technical Specifications
| Specification |
Value |
| Product Number | 427 |
| Adhesive Type | Acrylic |
| Backing Material | Dead Soft Aluminum Foil |
| Backing Thickness (Imperial) | 2.8 mil |
| Backing Thickness (Metric) | 0.07 mm |
| Adhesive Thickness (Imperial) | 1.8 mil |
| Adhesive Thickness (Metric) | 0.05 mm |
| Total Tape Thickness without Liner (Imperial) | 4.6 mil |
| Overall Width (Imperial) | 1 in |
| Overall Width (Metric) | 25.4 mm |
| Overall Length (Imperial) | 60 yd |
| Overall Length (Metric) | 54.86 m |
| Tensile Strength (Imperial) | 28 lb/in |
| Tensile Strength (Metric) | 49 N/100mm |
| Elongation at Break | 6% |
| Primary Liner | Easy Release Film |
| Primary Liner Thickness (Imperial) | 3.1 mil |
| Primary Liner Thickness (Metric) | 0.08 mm |
| Product Color | Silver |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Specifications Met | FAR 25.853(a), UL 746C, UL 723 Class L |
| Smallest Saleable Unit | Roll |
| Package Quantity | 48 Roll/Case |
| UPC | 00051131178090 |
| 3M ID | 7010332224 |
Order 3M Aluminum Foil Tape 427 LT80 Silver 1 inch 60 yard at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
