Premium industrial aluminum foil tape with thermally conductive acrylic adhesive, ideal for heat shielding, masking, and sealing applications across aerospace, automotive, and construction industries.
3M™ Aluminum Foil Tape 425 is a premium industrial-grade foil tape engineered for demanding applications across aerospace, automotive, appliance, construction, electronics, and general industrial sectors. Featuring a dead soft aluminum foil backing combined with a highly engineered pressure-sensitive acrylic adhesive, this tape delivers exceptional thermal conductivity and chemical resistance. The thermally conductive tape effectively dissipates heat and improves heating and cooling efficiency while protecting temperature-sensitive materials from damage. With a maximum operating temperature of 300°F (149°C) and minimum operating temperature of -65°F (-54°C), this tape maintains superior performance across extreme temperature ranges.
The 24-inch width and 60-yard length roll provides ample coverage for large-scale industrial applications including heat shielding of delicate components, heat reflecting, chemical paint stripping masking, moisture barriers, light reflection for enhanced efficiency, chemical milling, seaming, sealing, refrigerator and freezer coil attachment, and splicing operations. The tape is resistant to chemicals, weathering, moisture, UV exposure, and solvents, ensuring long-term durability both indoors and outdoors. Its 4.6 mil total thickness (2.8 mil backing with 1.8 mil adhesive) provides optimal balance between flexibility and structural integrity.
UL Recognized to UL 746C (File E 122798) and Classified by UL to UL 723 Class L for low flammability rating (File R 7311), this tape meets stringent safety standards including L-T-80C certification and FAR 25.853(a) specifications. The dead soft aluminum foil backing conforms seamlessly to curved and uneven surfaces, while the acrylic adhesive removes cleanly after harsh masking applications without leaving residue. With a 24-month shelf life and single-sided adhesive configuration, 3M Aluminum Foil Tape 425 is the go-to solution for professionals requiring reliable, durable, and compliant industrial adhesive tape.
Key Features
- Thermally conductive aluminum foil backing dissipates heat and improves heating and cooling efficiency
- Highly engineered acrylic adhesive provides long-term durability with clean removal after harsh applications
- Chemical resistant backing protects surfaces during de-paint and chemical masking operations
- Dead soft aluminum foil conforms to curved and uneven surfaces for superior coverage
- UL Recognized to UL 746C and Classified by UL to UL 723 Class L for low flammability rating
- Withstands extreme temperatures from -65°F to 300°F with excellent moisture and UV resistance
- Heat and light reflective properties enhance lighting efficiency and thermal protection
- Ideal for HVAC sealing, refrigerator/freezer coil attachment, and wiring harness applications
Technical Specifications
| Specification |
Value |
| Product Name | 3M Aluminum Foil Tape 425 |
| Part Number | 425 |
| 3M ID | 7010337250 |
| UPC Code | 00063806451599 |
| Backing Material | Aluminum Foil (Dead Soft) |
| Adhesive Type | Acrylic (Pressure-Sensitive) |
| Product Color | Silver |
| Overall Width | 24 inches (609.6 mm) |
| Overall Length | 60 yards (54.86 m) |
| Total Tape Thickness | 4.6 mil |
| Backing Thickness | 2.8 mil (0.07 mm) |
| Adhesive Thickness | 1.8 mil (0.05 mm) |
| Tensile Strength | 28 lb/in (49 N/100mm) |
| Elongation at Break | 6% |
| Maximum Operating Temperature | 300°F (149°C) |
| Minimum Operating Temperature | -65°F (-54°C) |
| Number of Adhesive Sides | Single-sided |
| Flame Retardant | Yes |
| Shelf Life | 24 months |
| Smallest Saleable Unit | 1 Roll per Case |
| UL Certification | UL Recognized to UL 746C (File E 122798) |
| Flammability Rating | Classified by UL to UL 723 Class L |
| Specifications Met | FAR 25.853(a), L-T-80C, SAE-AMS-T-23397 |
| Applications | Heat Shielding, Heat Reflecting, Chemical Masking, Moisture Barrier, Light Reflecting, Chemical Milling, Seaming, Sealing, HVAC Duct Work, Refrigerator and Freezer Coil Attachment |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicles, Transportation |
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