Premium thermally conductive aluminum foil tape with acrylic adhesive for heat shielding, heat reflecting, and sealing applications. UL 723 Class L rated, temperature range -65°F to 300°F, ideal for industrial and aerospace applications.
3M™ Aluminum Foil Tape 439 is a high-performance thermally conductive foil tape engineered for heat shielding, heat reflecting, and sealing applications across aerospace, appliance, automotive, construction, electronics, and industrial sectors. This premium tape features a dead soft aluminum foil backing with a highly engineered pressure-sensitive acrylic adhesive that provides long-term durability while removing cleanly after harsh masking applications. The linered version design makes it ideal for die-cutting operations and precision applications requiring exact dimensions.
With exceptional thermal conductivity properties, this tape dissipates heat over its surface to reduce hot spots and protect temperature-sensitive materials from high-temperature effects. The 3.1 mil total thickness provides optimal balance between flexibility and structural integrity, conforming easily to curved and uneven surfaces. The acrylic adhesive maintains strong, reliable bonds while withstanding exposure to high heat, humidity, moisture, weathering, UV radiation, and various solvents for reliable performance in demanding indoor and outdoor environments.
Classified by UL to UL 723 Class "L" for low flammability rating (File R 7311) and meeting F.A.R 25.853(a) specifications, this tape operates reliably across a temperature range of -65°F to 300°F (-54°C to 149°C). Supplied as 8 rolls per case with 60-yard length per roll and 1.375-inch width, it delivers excellent value for high-volume industrial applications including refrigerator and freezer coil attachment, plastic protection, EMI/RFI shielding, and moisture barrier applications.
Key Features
- Dead soft aluminum foil backing conforms to curved and uneven surfaces for seamless application
- Thermally conductive tape dissipates heat and improves heating and cooling efficiency
- Highly engineered acrylic adhesive provides long-term durability with clean removal after masking
- UL 723 Class L low flammability rating with F.A.R 25.853(a) compliance for aerospace applications
- Withstands extreme temperature range from -65°F to 300°F and resists flame, weathering, moisture, and UV exposure
Technical Specifications
| Specification |
Value |
| Product Type | Aluminum Foil Tape with Acrylic Adhesive |
| Part Number | 439 |
| Brand | 3M™ |
| Backing Material | Dead Soft Aluminum Foil |
| Adhesive Type | Pressure-Sensitive Acrylic |
| Overall Width (Imperial) | 1.375 in |
| Overall Width (Metric) | 1.257 mm |
| Overall Length (Imperial) | 60 yd |
| Overall Length (Metric) | 54.864 m |
| Total Tape Thickness without Liner (Imperial) | 3.1 mil |
| Total Tape Thickness without Liner (Metric) | 0.08 mm |
| Backing Thickness (Imperial) | 1.9 mil |
| Backing Thickness (Metric) | 0.05 mm |
| Primary Liner Thickness (Metric) | 0.14 mm |
| Tensile Strength (Imperial) | 18 lb/in |
| Tensile Strength (Metric) | 31.5 N/100mm |
| Elongation at Break | 3% |
| Color | Silver |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Temperature Range | -65°F to 300°F (-54°C to 149°C) |
| Shelf Life | 24 Months |
| UL Classification | UL 723, Class L (Low Flammability) |
| FAR Compliance | F.A.R 25.853(a) |
| Package Configuration | 8 Rolls per Case |
| Smallest Saleable Unit | Roll |
| UPC Code | 00638060407202 |
| 3M Product Number | 439 |
| 3M ID | 7100229358 |
| Application Type | EMI RFI Shielding of Seams |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military, Military & Government, Specialty Vehicles, Transportation |
Order 3M Aluminum Foil Tape 439 Silver 1.375 in x 60 yd at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
