Industrial-grade aluminum foil tape with thermally conductive acrylic adhesive for heat shielding, chemical masking, and protective applications. UL certified, temperature range -65°F to 300°F, 6 in x 60 yd rolls.
3M™ Aluminum Foil Tape 427 is a premium industrial-grade foil tape engineered for demanding applications across aerospace, automotive, appliance, construction, and electronics industries. Featuring a dead soft aluminum foil backing combined with a highly engineered acrylic adhesive, this linered tape is ideal for heat shielding, heat reflecting, chemical masking, light enhancement, chemical milling, seaming, sealing, and de-paint operations. The thermally conductive aluminum backing efficiently dissipates heat to reduce hot spots and protect temperature-sensitive substrates from high-temperature effects.
This versatile tape withstands exposure to extreme temperatures ranging from -65°F to 300°F (-54°C to 149°C), making it suitable for both indoor and outdoor applications. The acrylic adhesive provides exceptional durability while maintaining the ability to remove cleanly after harsh masking applications. With superior resistance to chemicals, moisture, weathering, and UV exposure, this tape delivers reliable performance in refrigerator and freezer coil attachment, plastic protection, and splicing applications.
3M™ Aluminum Foil Tape 427 is UL Recognized to UL 746C and Classified by UL to UL 723 Class L for low flammability rating, meeting FAR 25.853(a) specifications. Each case contains 2 rolls, providing 120 yards of premium tape coverage. The dead soft aluminum foil backing conforms easily to curved and uneven surfaces, while the easy release film liner ensures convenient application and precise cutting for die-cutting operations.
Key Features
- Thermally conductive aluminum foil backing efficiently dissipates heat and reduces hot spots
- Highly engineered acrylic adhesive provides long-term durability and clean removal after harsh masking
- Dead soft aluminum backing conforms to curved and uneven surfaces for superior application
- UL Recognized to UL 746C and Classified to UL 723 Class L for low flammability rating
- Resistant to chemicals, moisture, weathering, UV exposure, and temperature extremes from -65°F to 300°F
- Linered design with easy release film suitable for die-cutting applications
- Heat and light reflective properties enhance lighting efficiency and protect surfaces
- Ideal for aerospace, automotive, appliance, construction, and electronics industries
- Meets FAR 25.853(a) specifications for aerospace applications
- Suitable for refrigerator and freezer coil attachment, seaming, sealing, and de-paint operations
Technical Specifications
| Specification |
Value |
| Product Number | 427 |
| UPC Code | 00051125856294 |
| 3M ID | 7010296078 |
| Backing Material | Dead Soft Aluminum Foil |
| Adhesive Type | Acrylic, Pressure Sensitive |
| Overall Width (Imperial) | 6 inches |
| Overall Width (Metric) | 152.4 mm |
| Overall Length (Imperial) | 60 yards |
| Overall Length (Metric) | 54.86 meters |
| 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 |
| 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 | 2 Rolls |
| Specifications Met | FAR 25.853(a), UL 746C, UL 723 Class L |
| UL Recognition | UL Recognized to UL 746C (File E 122798) |
| UL Classification | Classified by UL to UL 723 Class L for Low Flammability Rating (File R 7311) |
| Applications | Heat Shielding, Heat Reflecting, Chemical Masking, Light Enhancement, Chemical Milling, Seaming, Sealing, De-Paint Operations, Refrigerator and Freezer Coil Attachment, Splicing, Plastic Protection |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military, Military & Government, Specialty Vehicles, Transportation |
| Brand | 3M™ |
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