Heavy-duty aluminum foil tape with acrylic adhesive for heat shielding, sealing, and moisture barrier applications. Withstands extreme temperatures from -65°F to 300°F, flame, UV, and weathering. UL recognized with 16 rolls per case.
3M™ Heavy Duty Aluminum Foil Tape 438 is a high-performance industrial adhesive tape engineered for demanding applications across aerospace, automotive, appliance, construction, electronics, and general industrial sectors. Featuring a dead soft aluminum foil backing with a highly engineered pressure-sensitive acrylic adhesive, this tape delivers exceptional heat shielding, heat reflection, seaming, and sealing capabilities. The tape is specifically designed to withstand exposure to high temperatures, flame, weathering, moisture, and UV radiation while maintaining superior bond strength and durability.
The dead soft, thermally conductive aluminum backing effectively dissipates heat over the tape surface to reduce hot spots and protect substrates from high-temperature effects. The advanced acrylic adhesive formulation provides long-term durability and reliable performance in harsh environments while maintaining the ability to remove cleanly after masking applications. With a temperature operating range from -65°F to 300°F (-54°C to 149°C), this tape is ideal for heat-sensitive component protection, refrigeration coil attachment, and plastic protection against thermal and UV exposure.
UL recognized to UL 746C and classified by UL to UL 723 Class "L" for low flammability rating, meeting F.A.R 25.853(a) standards. Each case contains 16 rolls of 3-inch width by 60-yard length tape with 7.2 mil total thickness, providing comprehensive coverage for industrial applications requiring reliable thermal and moisture barrier solutions.
Key Features
- Heavy duty dead soft aluminum foil backing for superior heat shielding and protection
- Highly engineered acrylic adhesive for long-term durability and clean removal after masking
- Withstands flame, weathering, moisture, and UV exposure in demanding applications
- Temperature operating range from -65°F to 300°F (-54°C to 149°C) for extreme environments
- UL recognized to UL 746C and classified UL 723 Class L for low flammability rating
Technical Specifications
| Specification |
Value |
| Product Number | 438 |
| Brand | 3M™ |
| Backing Material | Aluminum Foil |
| Backing Thickness (Imperial) | 5 mil |
| Backing Thickness (Metric) | 0.13 mm |
| Adhesive Type | Acrylic |
| Overall Width (Imperial) | 3 in |
| Overall Width (Metric) | 76.2 mm |
| Overall Length (Imperial) | 60 yd |
| Overall Length (Metric) | 54.86 m |
| Total Tape Thickness (Imperial) | 7.2 mil |
| Total Tape Thickness (Metric) | 0.18 mm |
| Tensile Strength (Imperial) | 59 lb/in |
| Tensile Strength (Metric) | 103 N/100mm |
| Elongation at Break | 10% |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Product Color | Silver |
| Shelf Life | 24 Months |
| Smallest Saleable Unit | Roll |
| Rolls Per Case | 16 Rolls |
| UPC | 00051125854863 |
| 3M ID | 7010314237 |
Order 3M Heavy Duty Aluminum Foil Tape 438 Silver 3 inch at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
