3M^TM Thinsulate^TM

3M™ Thinsulate™ Acoustic Insulation TC3403

Experience noise-reduction like never before with 3M™ Thinsulate™ Acoustic Insulation TC3403 – a revolutionary material crafted to meet the evolving demands of the automotive industry. Designed with precision to reduce noise, vibration, and harshness (NVH), TC3403 delivers one of the highest acoustic absorption-to-weight ratios in the Thinsulate™ series.

Engineered with a 50/50 blend of polyester and ultra-fine polypropylene fibers and double-sided polyolefin scrim, TC3403 ensures not only effective sound insulation but also robust durability and excellent compressibility. Whether you’re addressing complex cavity structures or targeting vehicle weight reduction, this Thinsulate material adapts seamlessly to your specifications.

As a trusted 3M Select Converter, EKO-TECH offers full-service converting solutions for TC3403 — including rewinding, slitting, sheeting, kiss and die cutting, and lamination with various 3M adhesives — so you receive a product tailored exactly to your production process and design.

Where TC3403 Performs Best

3M™ Thinsulate™ Acoustic Insulation TC3403 is ideal for automotive manufacturers looking to reduce cabin noise and vehicle mass without compromising performance. Use cases include:

Door trim panels and cavity fillers
Parcel shelves and trunk liners
Pillar and body side trim
Instrument panels
Vehicle headliners
Door hole seals
Areas needing variable-thickness NVH treatment

Why Choose TC3403?

High Acoustic Performance – Excellent absorption, especially in mid-to-high frequency ranges
Ultra-Lightweight – Weighing just 332 g/m², ideal for mass reduction strategies
Compressible and Conformable – Easily fills irregular cavities with strong recovery
Hydrophobic Design – Moisture, mold, and mildew resistant for long-term reliability
Easily Convertible – Designed for die-cutting and ultrasonic welding
Durable Structure – Reinforced with scrim for dimensional stability and abrasion resistance

Why Work with a 3M Select Converter Like EKO-TECH?

EKO-TECH, as an authorized 3M Select Converter, offers the experience, capability, and responsiveness you need for precise converting of Thinsulate™ materials like TC3403:

In-depth technical understanding of 3M™ materials
Custom-tailored converting processes for your component designs
Fast prototyping and scalable production
Reliable supply backed by global 3M network
Ready-to-use solutions with added 3M adhesives as needed

Converting Services from EKO-TECH

At EKO-TECH, we turn raw innovation into ready-to-install components. For 3M™ Thinsulate™ TC3403, our converting capabilities include:

Rewinding to individual lengths for efficient line integration
Slitting to custom widths for precise assembly fit
Sheeting for batch applications or manual processing
Die & Kiss Cutting for tailored shapes and patterns
Laminating with specialized 3M™ adhesives for added functionality

Our converting experts work closely with your engineering teams to define, design, and deliver optimized acoustic solutions based on TC3403’s outstanding performance characteristics.

Technical data

Composition web 50% polypropylene, 50% polyester
Composition scrim 100% polypropylene
Construction and colour White web with white scrim on both sides
Material Thickness 41 mm (tested after 6 weeks on roll according SAE J1355 @ 0,002 psi (14 N/m²))
Surface weight 332 g/m² (web and scrim; tested on 315 x 315 mm samples)
Density 7,7 kg/m3
Flammability Self-Extinguishing (SE) as per SAE J369 (FMVSS 302, ISO 3795, DIN75200)
Temperature resistance 120° C (tested for 2,000 hours)
Storage Rolls need to be stored upright
Availability
Die cuts as per customer requirement
– plain cut, hot trim edge or sealed edge
– available with adhesive