Professional aluminum foil tape with acrylic adhesive for heat and flame protection, conformable to irregular surfaces, 24 rolls per case with 2-inch width and 55-yard length, operating temperature range -30°F to 300°F.
3M™ Aluminum Foil Tape 4380 is a professional-grade, self-wound aluminum foil backed tape combined with a pressure-sensitive acrylic adhesive, specifically engineered for general purpose sealing, holding, splicing, and masking applications requiring protection from heat or flame. This industrial tape features a 2.0 mil dead soft aluminum foil backing that offers an excellent reflective surface and is both thermally and heat conductive for optimal heating and cooling efficiency. The malleable foil construction conforms exceptionally well to uneven, curved, or irregular surfaces, making it ideal for complex applications where standard rigid tapes would fail.
The tape's aluminum backing reflects light to enhance lighting efficiency while resisting flame, moisture, weather, dust, UV degradation, and many chemicals to provide long-lasting durability in demanding environments. With a pressure-sensitive acrylic adhesive designed to bond to a broad range of substrates, this tape adheres immediately upon contact and performs reliably under a wide spectrum of temperatures ranging from -30°F/-34°C to 300°F/149°C. The low moisture vapor transmission rate offers excellent sealing and patching performance, making it particularly effective for moisture and vapor barrier applications.
Each case contains 24 rolls of 2-inch width tape with 55 yards of coverage per roll, providing substantial coverage for large-scale industrial projects. The product is UL 723 approved and specifically formulated for industrial and occupational use in aerospace, appliance, construction, specialty vehicles, and transportation industries. This versatile tape is suitable for light reflecting, heat shielding applications, general holding and patching, and thermal conducting requirements.
Key Features
- Conformable aluminum foil backing resists flame, moisture, weather, UV degradation and many chemicals
- Thermally conductive tape reflects and dissipates radiant heat to protect heat-sensitive components
- Malleable foil conforms exceptionally well to irregular, curved, and uneven surfaces
- Pressure-sensitive acrylic adhesive bonds immediately to broad range of substrates
- Low moisture vapor transmission rate provides excellent sealing and patching performance
- Wide operating temperature range from -30°F to 300°F for versatile applications
- UL 723 approved for industrial and occupational safety standards
- Excellent light reflection properties enhance lighting efficiency
Technical Specifications
| Specification |
Value |
| Product Number | 3M 4380 |
| UPC Code | 00051111928639 |
| Backing Material | Aluminum Foil |
| Backing Thickness (Imperial) | 2 mil |
| Backing Thickness (Metric) | 0.05 mm |
| Total Tape Thickness (Imperial) | 3.25 mil |
| Total Tape Thickness (Metric) | 0.08 mm |
| Adhesive Type | Pressure-Sensitive Acrylic |
| Adhesive Thickness (Metric) | 0.05 mm |
| Width (Imperial) | 2 inches |
| Width (Metric) | 50.8 mm |
| Length (Imperial) | 55 yards |
| Length (Metric) | 50.29 meters |
| Tensile Strength (Imperial) | 160 oz/in |
| Tensile Strength (Metric) | 17.5 N/100mm |
| Elongation at Break | 4% |
| Minimum Operating Temperature (Fahrenheit) | -30°F |
| Minimum Operating Temperature (Celsius) | -34°C |
| Maximum Operating Temperature (Fahrenheit) | 300°F |
| Maximum Operating Temperature (Celsius) | 149°C |
| Product Color | Silver |
| Units per Case | 24 rolls |
| Brand | 3M™ |
| Applicable Industries | Aerospace, Appliance, Construction, Specialty Vehicles, Transportation |
| Certifications | UL 723 Approved |
| Intended Use | Industrial and occupational use only |
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