

3MTM ThinsulateTM
3M™ Thinsulate™ Acoustic Insulation TC2303
The 3M™ Thinsulate™ Acoustic Insulation TC2303 is engineered to meet the automotive industry’s growing demand for lightweight noise reduction solutions. As one of the lightest NVH cavity-fillers in the 3M™ Thinsulate™ family, TC2303 combines exceptional acoustic absorption with versatile conformability, making it a go-to material for vehicle manufacturers focused on mass reduction and acoustic performance. TC2303 features a 27 mm thick web of PE and PP fibers, optimized to absorb mid- and high-frequency noise by converting sound energy into heat. The double-sided 100% polypropylene scrim ensures durability, while its embossing enhances abrasion resistance. From pillars to panels, this acoustic insulation is designed for seamless integration in modern vehicle interiors.
With precision converting services by Eko-Tech, we offer tailored formats of 3M™ Thinsulate™ TC2303 for every production need — from slitting and sheeting to die-cutting and lamination with advanced adhesives.
Benefits of 3M™ Thinsulate™ Acoustic Insulation TC2303
Applications of 3M™ Thinsulate™ Acoustic Insulation TC2303
Perfect for diverse automotive noise control tasks, including:
Why Work with a 3M Select Converter Like Eko-Tech?
As an authorized 3M Select Converter, Eko-Tech brings:
Converting Services for 3M™ Thinsulate™ TC2303
Eko-Tech provides complete customization of Thinsulate™ TC2303 for your production processes:
Whether you’re looking to optimize for automation or simplify manual installation, our team will help you design, prototype, and produce the optimal solution for your application.
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 27 mm (tested after 6 weeks on roll according SAE J1355 @ 0,002 psi (14 N/m²))
Surface weight 232 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



3M™ AU0920 Thinsulate™
3M™ AU1220 Thinsulate™
3M™ AU1320 Thinsulate™
3M™ AU3020
3M™ AU6020 Thinsulate™
3M™ Thinsulate™ Acoustic Insulation AU4002-6
3M™ Thinsulate™ AU1504-6
3M™ Thinsulate™ AU1704-6
3M™ Thinsulate™ AU2002-5
3M™ Thinsulate™ AU2004-6
3M™ Thinsulate™ AU2020-6
3M™ Thinsulate™ AU3002-2
3M™ Thinsulate™ AU3002-4
3M™ Thinsulate™ AU3002-5
3M™ Thinsulate™ AU3004-6
3M™ Thinsulate™ AU3020-6
3M™ Thinsulate™ AU4004-6
3M™ Thinsulate™ AU4020-6
3M™ Thinsulate™ RS2400I
3M™ Thinsulate™ SM200L
3M™ Thinsulate™ SM300L
3M™ Thinsulate™ SM600L
3M™ Thinsulate™ TAI2001
3M™ Thinsulate™ TAI2027
3M™ Thinsulate™ TAI2047
3M™ Thinsulate™ TAI2099
3M™ Thinsulate™ TAI3027
3M™ Thinsulate™ TAI3047
3M™ Thinsulate™ TAI4047
3M™ Thinsulate™ TC1803
3M™ Thinsulate™ TC2303
3M™ Thinsulate™ TC3403
3M™ Thinsulate™ TF1500
3M™ Thinsulate™ TF1800
3M™ Thinsulate™ TF2300 

