3M™ Thinsulate™ TC1803 is purpose-built for automotive cavity filling and NVH control, especially in areas where thickness variation or mass sensitivity matters. Recommended use cases include:

Choosing EKO-TECH as your 3M Select Converter ensures you gain a technical partner with:

At EKO-TECH, we transform 3M™ Thinsulate™ Acoustic Insulation TC1803 into ready-to-use formats, tailored to your design and installation needs:

We help you integrate NVH solutions quickly and cleanly into production workflows.

Composition web 50 % polypropylene, 50 % polyester
Composit ion scrim 100% polypropylene
Construction and colour White web with white scrim on both sides
Material Thickness 21 mm (tested after 6 weeks on roll according SAE J1355 @ 0,002psi (14N/m²))
Surface weight 185 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 2000 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

Contact EKO-TECH today for consultation, samples, or custom quotes. Your next vehicle soundproofing breakthrough starts with 3M™ Thinsulate™ Acoustic Insulation TC1803 and precision converting by EKO-TECH.