| Brand | 3M™ |
| Product Number | 425 |
| Product Code | MMSJ434 |
| UPC | 00638060406977 |
| 3M ID | 7100229354 |
| Backing Material | Dead Soft Aluminum Foil |
| Backing Thickness (Imperial) | 2.8 mil |
| Backing Thickness (Metric) | 0.07 mm |
| Adhesive Type | Acrylic, Pressure-Sensitive |
| Adhesive Thickness (Imperial) | 1.8 mil |
| Adhesive Thickness (Metric) | 0.05 mm |
| Overall Width (Imperial) | 3 inches |
| Overall Width (Metric) | 76.2 mm |
| Overall Length (Imperial) | 60 yards |
| Overall Length (Metric) | 54.864 meters |
| Total Tape Thickness (Imperial) | 4.6 mil |
| Tensile Strength (Imperial) | 28 lb/in |
| Tensile Strength (Metric) | 49 N/100mm |
| Elongation at Break | 6% |
| Number of Adhesive Sides | Single-sided |
| Product Color | Silver |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Flame Retardant | Yes |
| Shelf Life | 24 Months |
| Smallest Saleable Unit | Roll |
| Quantity Per Case | 16 Rolls |
| Specifications Met | FAR 25.853(a), L-T-80C, SAE-AMS-T-23397, UL 746C, UL 723 Class L |
| UL Recognition | UL 746C (File E 122798) |
| UL Classification | UL 723 Class L Low Flammability (File R 7311) |
| 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 and sealing, Refrigerator and freezer coil attachment, Splicing, Plastic protection, HVAC duct work, Wiring harness attachment |
| Use Restriction | For industrial/occupational use only. Not for consumer sale or use. |
