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Eko-tech Converting Company
3M™ Thinsulate™ AU4020-62025-07-03T13:33:14+02:00
3M Thinsulate
3M Thinsulate

3MTM ThinsulateTM

3M™ Thinsulate™ AU4020-6

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:

  • Interior Cabin Solutions

    • Door panels
    • Instrument panels
    • Pillar trim
    • Headliners
  • Rear and Luggage Compartment

    • Package trays
    • Trunk floor liners
  • Exterior Protection & Insulation

    • Wheel arch liners
    • Bumper interiors
  • Moist or Humid Environments

    • Hydrophobic fibers resist water absorption – ideal for zones prone to condensation or temperature variation.

Lightweight Power for Vertical Silence

Discover 3M™ Thinsulate™ AU4020-6 with Expert Converting by EKO-TECH!

Why Choose 3M™ Thinsulate™ AU4020-6?

  • Superior Sound Absorption
    Ultra-fine polypropylene fibers absorb airborne noise effectively.

  • Lightweight Yet Durable
    With a surface weight of 417 g/m² and a density of just 16.7 kg/m³, you get acoustic performance without compromising vehicle efficiency.

  • Moisture Resistant
    Hydrophobic fibers prevent water uptake – minimizing risk of mold or odor.

  • Impressive Thickness – 26 mm
    Delivers increased acoustic isolation for deeper cavities and heavy-duty panels.

  • Enhanced Mechanical Integrity
    Dual embossed surfaces improve abrasion resistance and scrim bonding.

  • Exceptional Heat Resistance
    Tested to withstand up to 462 °C for 2000 hours, suitable for demanding thermal zones.

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:

  • Expert Material Handling
    Decades of experience with Thinsulate™ materials and automotive applications.

  • Scalable Production
    From prototyping to mass production – consistent quality and lead times.

  • Application-Ready Deliverables
    Save time and cost with pre-cut, laminated, and formatted components.

  • Certified Reliability
    ISO-standard processes, consistent traceability, and material performance guarantees.

Converting Capabilities for AU4020-6 – Tailored by EKO-TECH

At EKO-TECH, we deliver fully converted 3M™ Thinsulate™ AU4020-6 components through the following processes:

  • Rewinding to individual lengths

  • Slitting to custom widths

  • Sheeting for manual or automatic application

  • Die-cutting & kiss-cutting to fit specific designs or contours

  • Laminating with a variety of 3M™ adhesives optimized for your substrates

From CAD to final form, we help you engineer success into every layer.

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

FAQ

What batch sizes can EKO-TECH support?2025-07-03T13:56:58+02:00

From one-off prototypes to high-volume runs, our lines are optimized for scalability.

Do you supply custom shapes or cut parts?2025-07-03T13:54:41+02:00

Absolutely – we provide sheets, kiss-cut rolls, and die-cut parts to fit your assembly process.

Can this material be die-cut or heat-sealed?2025-07-03T13:53:06+02:00

Yes. AU4020-6 is compatible with ultrasonic welding, heat bonding, and pressure-sensitive adhesives.

Is AU4020-6 waterproof?2025-07-03T13:51:37+02:00

It is hydrophobic – designed to repel water and prevent mildew or odor formation.

What is the fiber composition of AU4020-6?2025-07-03T13:50:08+02:00

The web consists of 65% polypropylene and 35% polyester, with a 100% polypropylene scrim.

Downloads

3m-thinsulate-auxx04-6-series-tds_R2-1.pdf
3m-thinsulate-auxx04-6-series-tds_R2-1.pdf

Ready to Integrate 3M™ Thinsulate™ AU4020-6 into Your Product?

Let EKO-TECH deliver the right format, size, and adhesive integration for your exact application. Trust our converting precision to turn AU4020-6 into an acoustic solution that fits

Eko-Tech Converting Company
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