3M™363 Engineered for Extremes – Thermal Protection Meets High-End Convertibility

Q: Can Eko-Tech provide custom dimensions or finished parts?

Yes. We offer rewinding, slitting, sheeting, kiss-cutting, and cross-wound spooling to meet any custom requirement.

Q: What are common use cases for this tape?

It’s used in aerospace insulation , automotive heat shields , industrial wrapping , and thermal barriers in electronics .

Q: Can the tape be die-cut or kiss-cut?

Absolutely. The tape has excellent converting stability and is frequently die-cut into insulation shapes or tabs.

Q: Is the adhesive silicone-based?

Yes, it uses a pressure-sensitive silicone adhesive that remains stable under high heat and thermal cycling.

Q: How much heat can 3M™ Tape 363 handle?

It resists short-term exposure up to 500°F (260°C) – perfect for plasma spray masking and engine insulation.

3M™ High Temperature Aluminum Foil/Glass Cloth Tape 363 combines the durability of woven fiberglass cloth with the reflectivity of aluminum foil, bonded by a high-temperature silicone adhesive. This unique construction enables it to withstand extreme conditions, including exposure up to 260°C (500°F).

With Eko-Tech’s precision converting – including rewinding, slitting, kiss-cutting, and spooling – this tape becomes a ready-to-use solution for thermal shielding, heat wrapping, and flame barrier applications across aerospace, electronics, and industrial sectors.

Applications – Where to Use 3M™ High Temperature Aluminum Foil/Glass Cloth Tape 363

Aircraft insulation blanket attachment and sealing
High-temperature masking for plasma spray & flame spray
Heat shielding on wire harnesses and cables
Protective wrapping for automotive underhood components
Industrial pipe insulation sealing
Thermal shielding in electrical enclosures and cabinets
Flexible printed circuit board (FPC) heat reflection zones

Benefits – Why Choose 3M™ High Temperature Aluminum Foil/Glass Cloth Tape 363?

Withstands up to 260°C (500°F) – Ideal for lead-free solder reflow and extreme processing environments
Aluminum-Glass Cloth Laminate – Combines mechanical strength and thermal reflectivity
Silicone Adhesive – Offers long-lasting bond in high-temp conditions
Tear-Resistant and Flame Retardant – Meets multiple aerospace and industrial specs
Converting Friendly – Excellent dimensional stability for precision die-cutting
Low Outgassing – Suitable for sensitive electronics and clean applications

Why Partner with a 3M™ Select Converter like Eko-Tech?

At Eko-Tech, we go beyond distribution. As a 3M™ Select Converter, we deliver:

3M-trained converting expertise for products like 3M™ GPT020 and 363
ISO-certified manufacturing and quality control
Custom formats and rapid prototyping
End-to-end support from design to delivery
Flexible production volumes – from R&D to full-scale rollout

You don’t just buy material — you get a custom-engineered, performance-driven solution.

Converting Services for 3M™ High Temperature Aluminum Foil/Glass Cloth Tape 363

We can convert this high-performance tape to match your exact application:

Rewinding – to custom roll lengths
Slitting – to specific widths for line-ready integration
Sheeting – for manual or robotic assembly use
Die & Kiss Cutting – complex shapes, tabs, insulation pads
Cross-Wound Spooling – for continuous high-speed processes

Just like we support 3M™ GPT020 in precision bonding, we support 363 in thermal protection with process-ready formats.

Technical data

Total thickness of tape without backing (metric units) 0.19 mm
Shelf life 36 months
Adhesive thickness on the back side (metric units) 0.09 mm, 0.1 mm
Backing thickness (metric units) 0.06 mm
Number of cassettes 24/case, 36/case
Product colour Silver
Number of units per package 24.0, 36.0, 48.0
Maximum operating temperature 316°C
Brands 3M™
Backing material (carrier) Aluminium foil / glass wool
Minimum operating temperature -54°C

Industry Construction, General industry, Metalworking, Military and government, Transportation, Automotive, Electronics, Special vehicle, Home appliances, Aerospace
Core size (metric units) 7.62 cm
Compliant with ASTM D3330, D3652, ASTM D3758, F.A.R. 25.853(a)
Adhesive Type Silicone
Indoor/Outdoor
Elongation at Break 7.0 %
Tensile Strength (metric units) 57 N/100 mm, 2364 N/100 mm
Total Length (metric units) 32.9 m, 33 m
Total Width (metric units) 19.05 mm, 25.4 mm, 50.8 mm