

3MTM ThinsulateTM
3M™ Thinsulate™ AU4020-6 Silence the Noise with Precision: 3M™ Thinsulate™ AU4020-6 by EKO-TECH
If you’re looking to reduce noise in automotive interiors while preserving weight efficiency and moisture resistance, 3M™ Thinsulate™ Acoustic Insulation AU4020-6 is your ideal material. Designed to deliver premium acoustic performance in vehicle cabins and exterior trims, AU4020-6 is a lightweight, non-linting, and hydrophobic insulation with enhanced surface durability and easy die-cutting capability.
At EKO-TECH, we don’t just deliver material—we convert it to your exact specifications. Whether you need rewound rolls, precision widths, individual sheets, custom die-cut parts or laminates with high-performance 3M adhesives, our converting expertise brings the versatility of AU4020-6 directly to your production line.
Applications – Where to Use 3M™ Thinsulate™ AU4020-6
AU4020-6 is ideal for a broad range of automotive acoustic insulation needs, including:
Why Choose 3M™ Thinsulate™ AU4020-6?
Why Work with a 3M Select Converter like EKO-TECH?
Choosing a 3M Select Converter like EKO-TECH brings your material a step closer to full integration:
Technical data
General Properties Composition 65% polypropylene, 35% polyester (Web) 100% polypropylene (Scrim)
Colour White web with white scrim.
Thickness 26mm (SAE J1355 @ 0,002 psi, 14 N/m²)
Surface weight 417 g/m
Density 16,8 kg/m
Flammability 0mm/min as per FMVSS 302 (DIN75200, ISO 3795 (1976))
Temperature stability 120°C for 2000 Hours




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