Item Name: 3M™ Aluminum Foil Tape 425
Manufacturer: 3M
Technologies: Pressure-sensitive acrylic adhesive with dead soft aluminum foil backing
Color: Silver
Cure Type: Pressure sensitive (self-adhesive, no curing required)
Package Size: 1/2 in x 60 yd (1.3 cm x 54.9 m), 72 rolls/case
Shelf Life: 24 months
1. Product Overview
3M™ Aluminum Foil Tape 425 is a premium, multipurpose foil tape designed for heat management, chemical masking, and sealing applications. Featuring a dead soft aluminum foil backing with a pressure-sensitive acrylic adhesive, it provides high thermal conductivity for efficient heat dissipation, excellent chemical and flame resistance, and clean removability. Its conformability ensures reliable bonding on curved and irregular surfaces, making it widely applicable across industrial, aerospace, automotive, and electronic sectors.
2. Applications
Heat shielding and reflecting on sensitive parts.
Masking during chemical paint stripping and chemical milling.
Moisture barrier, splicing, and sealing thin foils.
Light reflection for enhanced illumination.
Refrigerator/freezer coil attachment and appliance assembly.
General industrial, transportation, and aerospace maintenance.
3. Typical Properties
| Property | Value / Description |
|---|---|
| Adhesive Type | Acrylic |
| Backing Material | Aluminum Foil (Dead Soft) |
| Total Thickness | 0.12 mm (4.6 mil) |
| Back-Side Adhesive Thickness | 0.05 mm |
| Backing Thickness | 0.07 mm |
| Operating Temperature Range | -54 °C to 149 °C |
| Elongation at Break | 6% |
| Tensile Strength | 49 N/cm |
| Shelf Life | 24 months |
| Dimensions | 1.3 cm width × 54.9 m length |
| Certifications | UL 746C, UL 723 Class “L”, FAR 25.853(a) |
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