Benefits
-
Helps protect heat-sensitive cables, wire harnesses, and instruments.
-
Supports consistent positioning and handling of die-cut components.
-
Reduces the risk of tearing and puncturing during application.
-
Provides heat-reflective protection in demanding industrial environments.
-
Conforms to irregular surfaces where rigid shielding materials may be unsuitable.
-
Enables customized shapes and sizes for specialized assembly requirements.
-
Helps simplify handling and placement in precision manufacturing processes.
Technical Specifications
| Property | Typical Specification |
|---|---|
| Product name | 3M 363L High Temperature Aluminum Foil/Glass Cloth Tape |
| Product type | Single-sided high-temperature tape |
| Color | Silver |
| Backing | Aluminum foil laminated to glass cloth |
| Adhesive | Transparent pressure-sensitive silicone adhesive |
| Total tape thickness, excluding liner | 0.19 mm (7.3 mil) |
| Aluminum foil thickness | 0.025 mm (1.0 mil) |
| Glass cloth thickness | 0.06 mm (2.4 mil) |
| Release liner thickness | Approx. 0.05 mm (2.0 mil) |
| 180° peel adhesion to steel | Approx. 7.3 N/100 mm |
| Tensile strength | Approx. 2,364 N/100 mm |
| Elongation at break | 7% |
| Temperature range | -54°C to 316°C |
| Standard roll length | Approx. 33 m (36 yd) |
| Standard width | Depends on product configuration; verify the selected SKU |
| Flame performance | Meets the requirements of FAR 25.853(a) |
| Die-cutting suitability | Yes, designed for applications requiring a release liner |
Technical note: These are typical reference values from 3M product documentation, not guaranteed specifications. Confirm the latest regional technical data sheet and exact product configuration before specifying the tape. Temperature performance depends on the application and exposure conditions.
Applications
-
Heat-reflective wrapping over insulated cables and wire harnesses.
-
Protection of temperature-sensitive instruments and components.
-
Custom die-cut thermal shielding parts.
-
High-temperature aerospace and transportation applications.
-
Automotive cable and component protection.
-
Industrial equipment exposed to heat, vibration, and movement.
-
Specialized assemblies requiring flexible, reinforced foil tape.
-
Selected temporary surface-protection applications, subject to process validation.
Compatible Materials
Potential substrates include:
-
Aluminum and other metal surfaces.
-
Stainless steel and selected metal components.
-
Silicone surfaces and selected silicone-containing materials.
-
Glass and suitable rigid surfaces.
-
Cable jackets and insulation materials.
-
Selected industrial substrates with irregular or uneven surfaces.
Compatibility note: Adhesion depends on substrate chemistry, surface energy, cleanliness, roughness, temperature, and environmental exposure. Test the actual substrate and assembly before production use.
Industries
-
Aerospace and aviation.
-
Automotive and transportation.
-
Electrical and electronics.
-
Wire and cable manufacturing.
-
Industrial equipment and machinery.
-
Appliance manufacturing.
-
Metal fabrication.
-
Specialized thermal management and protective assemblies.
Why Choose 3M 363L?
3M 363L combines a reinforced aluminum foil/glass cloth backing, silicone pressure-sensitive adhesive, and an easy-release liner. This construction is particularly useful when the application requires both high-temperature performance and conversion into custom shapes.
Compared with standard 3M 363, the key difference is the release liner, which supports die-cutting and easier handling of pre-cut components.
Yousan can help evaluate material selection, slitting, and precision die-cutting requirements based on customer drawings, dimensions, and application conditions.
Installation Guide
-
Prepare the surface: Ensure the bonding surface is clean, dry, and free from dust, oil, and other contaminants.
-
Check application conditions: For best results, apply to a clean, dry surface above 0°C, following the applicable product documentation.
-
Prepare the tape: Cut the tape to the required length or use pre-cut die-cut components.
-
Position the tape: Align the tape carefully before making full contact with the surface.
-
Apply pressure: Press evenly to establish good adhesive contact and minimize trapped air.
-
Inspect the application: Check for lifted edges, wrinkles, gaps, or incomplete contact.
-
Validate performance: Test the assembled component under actual operating temperatures and environmental conditions before critical use.
Storage
-
Store in a clean, dry environment.
-
Follow the storage conditions stated in the current 3M technical documentation.
-
Keep the tape in its original packaging until use.
-
Protect it from direct sunlight, moisture, dust, and chemical contamination.
-
Observe the product’s stated shelf life and manufacturing-date requirements.
FAQ
1. What is 3M 363L aluminum foil tape used for?
It is used for heat-reflective wrapping and protection of heat-sensitive cables, instruments, and components in aerospace, automotive, and industrial applications.
2. What is the difference between 3M 363 and 3M 363L?
3M 363L is the linered version of 3M 363. Its easy-release film liner makes it suitable for die-cutting and handling custom-shaped parts.
3. Can 3M 363L withstand 316°C?
3M specifies a temperature-use range of -54°C to 316°C. Confirm the conditions and duration of exposure for the intended application; actual assembly performance may vary.
4. Is 3M 363L made from aluminum foil only?
No. Its backing consists of aluminum foil laminated to glass cloth, providing reinforcement and improved resistance to puncture and tearing.
5. Can 3M 363L be die-cut into custom shapes?
Yes. The release liner supports die-cutting and handling of customized shapes and sizes.
6. Does 3M 363L adhere to silicone?
Its silicone pressure-sensitive adhesive is designed to adhere to challenging surfaces, including silicone. Actual adhesion should be tested on the specific substrate.
7. Is 3M 363L flame resistant?
3M documentation states that it meets the requirements of FAR 25.853(a). Confirm the applicable certification and assembly-level requirements for the intended use.
8. Is 3M 363L suitable for outdoor applications?
The product offers resistance to weather and UV degradation. Suitability for long-term outdoor exposure depends on the environment, substrate, and service requirements.
9. Can Yousan supply custom die-cut 3M 363L parts?
Yousan can evaluate custom converting requirements, including dimensions, shapes, tolerances, and liner handling, subject to material availability and process feasibility.
Downloads
Available upon request:
- 3M 363L Aluminum Foil Tape Technical Data Sheet (TDS)
- Safety Data Sheet (SDS)
- Product Brochure
- Die-Cutting Capability Guide
Please contact our sales team if you require the latest technical documentation.
