Professional-grade 48in x 60yd aluminum foil tape with acrylic adhesive for heat shielding, sealing, and thermal protection in demanding industrial applications
3M™ Heavy Duty Aluminum Foil Tape 438 is a high-performance industrial adhesive tape engineered for demanding applications across aerospace, automotive, construction, electronics, and manufacturing industries. Featuring a dead soft aluminum foil backing with a thermally conductive composition, this tape dissipates heat effectively to reduce hot spots and protect substrates from high temperature exposure. The tape combines superior thermal management with a highly engineered pressure-sensitive acrylic adhesive that maintains strong, reliable bonds even under extreme conditions including high heat, humidity, moisture, weathering, UV exposure, and chemical solvents.
With dimensions of 48 inches wide by 60 yards long and a total thickness of 7.2 mil, this professional-grade tape is ideal for heat shielding, heat reflecting, seaming, sealing, and moisture barrier applications. The aluminum foil backing provides exceptional light and heat reflectivity, enhancing lighting efficiency while protecting delicate components. The acrylic adhesive formulation ensures long-term durability while maintaining clean removal capabilities after harsh masking applications, making it versatile for temporary or permanent installations.
UL recognized to UL 746C and classified by UL to UL 723 Class L for low flammability rating, this tape meets F.A.R 25.853(a) standards and operates reliably across a temperature range from -65°F to 300°F (-54°C to 149°C). With a 24-month shelf life and tensile strength of 59 lb/in, the tape delivers consistent performance in refrigeration, HVAC, aerospace, and general industrial applications. Packaged as 1 roll per case for convenient ordering and storage.
Key Features
- Dead soft aluminum foil backing provides superior heat dissipation and thermal conductivity for demanding applications
- Highly engineered acrylic adhesive maintains strong bonds under extreme heat, humidity, and environmental conditions
- Withstands flame, weathering, moisture, UV exposure, and chemical solvents for long-lasting durability
- Heat and light reflective properties enhance lighting efficiency and protect delicate components from thermal damage
- UL recognized to UL 746C and classified UL 723 Class L with F.A.R 25.853(a) compliance for aerospace and safety applications
- Wide temperature operating range from -65°F to 300°F ensures reliable performance in extreme conditions
- Clean removal capability after harsh masking applications without residue or substrate damage
- Ideal for heat shielding, seaming, sealing, moisture barriers, and refrigeration applications
Technical Specifications
| Specification |
Value |
| Product Name | 3M Heavy Duty Aluminum Foil Tape 438 |
| Part Number | 438 |
| 3M Product Number | 438 |
| 3M ID | 7100118938 |
| UPC Code | 00051125856867 |
| Backing Material | Aluminum Foil (Dead Soft) |
| Backing Thickness (Imperial) | 5 mil |
| Backing Thickness (Metric) | 0.13 mm |
| Adhesive Type | Acrylic - Pressure Sensitive |
| Adhesive Thickness (Metric) | 0.13 mm |
| Total Tape Thickness (Imperial) | 7.2 mil |
| Total Tape Thickness (Metric) | 0.18 mm |
| Overall Width (Imperial) | 48 in |
| Overall Width (Metric) | 1,219.2 mm |
| Overall Length (Imperial) | 60 yd |
| Overall Length (Metric) | 54.86 m |
| Tensile Strength (Imperial) | 59 lb/in |
| Tensile Strength (Metric) | 103 N/100mm |
| Elongation at Break | 10% |
| Product 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 Use Range | -65°F to 300°F (-54°C to 149°C) |
| Shelf Life | 24 Months |
| Brand | 3M™ |
| Smallest Saleable Unit | Roll |
| Packaging | 1 Roll/Case |
| UL Recognition | UL Recognized to UL 746C (File E 122798) |
| UL Classification | UL 723 Class L for Low Flammability (File R 7311) |
| FAR Compliance | Meets F.A.R 25.853(a) |
| Applications | Heat shielding, heat reflecting, moisture barrier, seaming and sealing, refrigerator and freezer coil attachment, plastic protection |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicles, Transportation |
| Resistance Properties | Flame, weathering, moisture, UV, solvents, high heat and humidity |
Order 3M Heavy Duty Aluminum Foil Tape 438 Silver 48in at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
