Premium thermally conductive aluminum foil tape with acrylic adhesive for industrial heat shielding, chemical masking, and sealing applications. UL certified with temperature range -65°F to 300°F. 6 inch width, 60 yard length per roll, 8 rolls per case.
3M™ Aluminum Foil Tape 427 is a premium industrial-grade linered foil tape engineered for demanding applications across aerospace, automotive, construction, electronics, and manufacturing industries. Featuring a dead soft aluminum foil backing with highly engineered acrylic adhesive, this thermally conductive tape effectively dissipates heat and improves heating and cooling efficiency while protecting temperature-sensitive materials. The tape is specifically designed for die-cutting applications and offers exceptional chemical resistance, making it ideal for de-paint processes and chemical masking operations.
This versatile foil tape combines superior thermal conductivity with outstanding durability and environmental resistance. It withstands exposure to extreme temperatures ranging from -65°F to 300°F (-54°C to 149°C), moisture, weathering, UV radiation, and various solvents. The acrylic adhesive provides long-term reliability while maintaining the ability to remove cleanly after harsh masking applications. The heat and light reflective properties enhance energy efficiency and protect surfaces from thermal damage, while the dead soft aluminum backing conforms seamlessly to curved and uneven surfaces.
UL Recognized to UL 746C and Classified by UL to UL 723 Class "L" for low flammability rating, this tape meets FAR 25.853(a) specifications, making it suitable for aerospace and aviation applications. Each case contains 8 rolls of 60-yard length tape, 6 inches wide, with 4.6 mil total thickness. Perfect for heat shielding, seaming, sealing, refrigerator coil attachment, and numerous industrial applications requiring reliable thermal and chemical protection.
Key Features
- Dead soft aluminum foil backing conforms to curved and uneven surfaces
- Thermally conductive tape dissipates heat and improves HVAC efficiency
- Highly engineered acrylic adhesive provides long-term durability and clean removal
- Resistant to chemicals, moisture, weathering, UV, and solvents for extended work life
- UL Recognized to UL 746C and Classified to UL 723 Class L for low flammability
- Heat and light reflective properties enhance energy efficiency and protect surfaces
- Temperature range -65°F to 300°F (-54°C to 149°C) for extreme environments
- Linered version suitable for die-cutting and precision applications
- Meets FAR 25.853(a) specifications for aerospace applications
Technical Specifications
| Specification |
Value |
| Product Number | 427 |
| UPC Code | 00051128998601 |
| 3M ID | 7010378529 |
| Backing Material | Dead Soft Aluminum Foil |
| Backing Thickness (Imperial) | 2.8 mil |
| Backing Thickness (Metric) | 0.07 mm |
| Adhesive Type | Acrylic |
| Adhesive Thickness (Imperial) | 1.8 mil |
| Adhesive Thickness (Metric) | 0.05 mm |
| Overall Width (Imperial) | 6 inches |
| Overall Width (Metric) | 152.4 mm |
| Overall Length (Imperial) | 60 yards |
| Overall Length (Metric) | 54.86 meters |
| Total Tape Thickness without Liner (Imperial) | 4.6 mil |
| Primary Liner | Easy Release Film |
| Primary Liner Thickness (Imperial) | 3.1 mil |
| Primary Liner Thickness (Metric) | 0.08 mm |
| Tensile Strength (Imperial) | 28 lb/in |
| Tensile Strength (Metric) | 49 N/100mm |
| Elongation at Break | 6% |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Product Color | Silver |
| Smallest Saleable Unit | Roll |
| Quantity per Case | 8 rolls |
| Specifications Met | FAR 25.853(a) |
| UL Recognition | UL 746C (File E 122798) |
| UL Classification | UL 723 Class L - Low Flammability Rating (File R 7311) |
| Brand | 3M™ |
| Product Type | Linered Aluminum Foil Tape |
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