Professional-grade aluminum foil tape with silicone adhesive for high-temperature heat shielding. Withstands -65°F to 600°F, flame resistant, UL recognized, ideal for HVAC, oven doors, and thermal insulation applications.
3M™ High Temperature Aluminum Foil Tape 433 is a professional-grade heat shielding solution designed for demanding industrial applications where extreme temperatures are a critical concern. This dead soft aluminum foil tape is coated with a clear silicone pressure-sensitive adhesive that provides exceptional bonding to a wide variety of surfaces, maintaining strong and reliable adhesion even in high-temperature environments where conventional adhesive tapes fail. The tape excels in applications ranging from -65°F to 600°F (-54°C to 316°C), making it ideal for thermal insulation wrapping, oven door sealing, heating element protection, and metal annealing processes.
The thermally conductive nature of this aluminum foil tape helps effectively dissipate heat, protecting temperature-sensitive materials and components from thermal damage. With its dead soft aluminum backing that conforms easily to curved and uneven surfaces, combined with a 2 mil backing thickness and 3.6 mil total tape thickness, this product delivers superior performance in heat shielding applications. The tape meets stringent flame resistance requirements of F.A.R. 25.853(a) and is recognized as a UL component (file QQQW2.MH122798), ensuring compliance with aerospace and industrial safety standards.
Each case contains 24 rolls of 1.5 inch width by 10 yard length tape, providing ample coverage for large-scale industrial projects. The silicone adhesive bonds on contact, eliminating the need for additional fastening methods, while the easy-release film backing ensures convenient dispensing. This industrial-grade tape is specifically formulated for professional use and is recommended for seaming, sealing, splicing, and heat shielding applications across aerospace, appliance, automotive, construction, electronics, and general industrial sectors.
Key Features
- Withstands limited exposure up to 600°F/316°C for superior heat shielding performance
- Thermally conductive aluminum foil backing dissipates heat and protects temperature-sensitive materials
- Dead soft aluminum conforms to curved and uneven surfaces for versatile application
- Clear silicone pressure-sensitive adhesive bonds on contact to multiple difficult substrates
- Flame resistant - meets F.A.R. 25.853(a) requirements and UL recognized component
- Wide operating temperature range from -65°F to 600°F for extreme environment applications
- Improves heating and cooling efficiency in HVAC and thermal management systems
- Easy-release film backing for convenient dispensing and application
Technical Specifications
| Specification |
Value |
| Product Name | 3M™ High Temperature Aluminum Foil Tape 433 |
| Part Number | 433 |
| UPC Code | 00051138960964 |
| 3M ID | 7010334801 |
| Color | Silver |
| Backing Material | Aluminum Foil - Dead Soft |
| Adhesive Type | Clear Silicone Pressure Sensitive |
| Backing Thickness (Imperial) | 2 mil |
| Backing Thickness (Metric) | 0.05 mm |
| Adhesive Thickness (Imperial) | 1.6 mil |
| Total Tape Thickness (Imperial) | 3.6 mil |
| Total Tape Thickness (Metric) | 0.09 mm |
| Width (Imperial) | 1.5 inches |
| Width (Metric) | 38.1 mm |
| Length (Imperial) | 10 yards |
| Length (Metric) | 9.14 meters |
| Tensile Strength (Imperial) | 20 lb/in |
| Tensile Strength (Metric) | 35 N/100mm |
| Elongation at Break | 3.5% |
| Maximum Operating Temperature (Fahrenheit) | 600°F |
| Maximum Operating Temperature (Celsius) | 316°C |
| Minimum Operating Temperature (Fahrenheit) | -65°F |
| Minimum Operating Temperature (Celsius) | -54°C |
| Primary Liner | Easy Release Film |
| Smallest Saleable Unit | Roll |
| Units per Case | 24 rolls |
| Specifications Met | FAR 25.853(a), UL Recognized Component (File QQQW2.MH122798) |
| Application | Sealing HVAC & Duct Work, Heat Shielding |
| Industries | Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military & Government, Specialty Vehicles, Transportation |
| Recommended Applications | High temperature heat shielding, Splice jumbo rolls, Metal annealing, Heat element protection |
| Warranty | 3M standard warranty - consult product literature |
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