| Product Name | 3M™ Aluminum Foil Tape 425 |
| Part Number | 425 |
| 3M Product Number | 425 |
| UPC Code | 00051125853194 |
| Backing Material | Aluminum Foil (Dead Soft) |
| Adhesive Type | Acrylic (Pressure-Sensitive) |
| Product Color | Silver |
| Overall Width (Metric) | 125 mm |
| Overall Width (Imperial) | 4.87 in |
| Overall Length (Metric) | 55 m |
| Overall Length (Imperial) | 60.148 yd |
| Backing Thickness (Metric) | 0.07 mm |
| Backing Thickness (Imperial) | 2.8 mil |
| Adhesive Thickness (Metric) | 0.05 mm |
| Adhesive Thickness (Imperial) | 1.8 mil |
| Total Tape Thickness (Imperial) | 4.6 mil |
| Tensile Strength (Metric) | 49 N/100mm |
| Tensile Strength (Imperial) | 28 lb/in |
| Elongation at Break | 6% |
| Maximum Operating Temperature (Celsius) | 149°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Temperature Range | -65°F to 300°F (-54°C to 149°C) |
| Number of Adhesive Sides | Single-sided |
| Flame Retardant | Yes |
| Shelf Life | 24 Months |
| Smallest Saleable Unit | Roll |
| Quantity per Case | 2 Rolls |
| Total Coverage per Case | 110 meters (2 rolls × 55m) |
| UL Certification | UL Recognized to UL 746C (File E 122798) |
| UL Classification | UL 723 Class L - Low Flammability |
| Specifications Met | FAR 25.853(a), L-T-80C, SAE-AMS-T-23397 |
| Brands | 3M™ |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicles, Transportation |
| Applications | Heat shielding, heat reflecting, chemical masking, moisture barrier, light reflecting, chemical milling, seaming, sealing, refrigerator and freezer coil attachment, splicing, plastic protection |
| Recommended Uses | Exterior seams & joints, interior seams & joints, painting & depainting, refrigerator and freezer coil attachment, sealing HVAC & duct work, sealing plate edges against solvent penetration, shielding, shielding from engine heat, wiring harness attachment |
| Chemical Resistance | Resistant to chemicals, moisture, weathering, and UV exposure |
| Surface Conformability | Conforms to curved and uneven surfaces due to dead soft aluminum foil backing |