

3MTM ThinsulateTM
3M™ Thinsulate™ Acoustic Insulation RS2400I
3M™ Thinsulate™ RS2400I is a non-woven, dual-scrim acoustic insulation designed specifically for harsh automotive environments, such as engine bays and wheel arch liners. This innovative material provides superior sound absorption, excellent fluid resistance, and durable thermal performance up to 120°C. Thanks to its dual black scrim and embossed surfaces, it offers both abrasion protection and secure adhesion points.
At EKO-TECH, we bring this premium insulation material closer to your specific needs. Through expert converting services such as rewinding, slitting, sheeting, die-cutting, and laminating with 3M adhesives, we transform RS2400I into application-ready formats – with fast turnaround and precision.
Where RS2400I Excels
3M™ Thinsulate™ RS2400I is ideal for a wide range of demanding automotive acoustic insulation applications, including:
Its fluid-resistant scrim ensures long-term performance even in exposure to oil, diesel, or water-based solutions.
Benefits of 3M™ Thinsulate™ RS2400I
Why choose this advanced insulation material?
Converter Benefits – Why Choose EKO-TECH
As a 3M Select Converter, EKO-TECH offers:
When you choose EKO-TECH, you’re choosing a reliable, proven partner with deep expertise in technical materials and their industrial application.
Technical data:
Composition web 65% polypropylene, 35% polyester
Composition scrim Polyester
Construction and colour White web with both sides black scrim, both side
s embossed
Material Thickness 23 mm (tested after 6 weeks on roll according SAE J1355 @ 0,002psi (14N/m²))
Surface weight 570 g/m² (web and scrim; tested on 315 x 315 mm samples)
Flammability Self – Extinguishing (SE) as per SAE J369 (FMVSS 302, ISO 3795
, DIN75200) 700°C Glow Wire Flammability Index as per IEC -60695 – 2- 12
Temperature resistance 120°C (7days; baseweb 2000h ours )
Fluid resistance Evaluation according EN ISO 14419:1999 Deionized water – A Oil (SAE 15W40) – A Diesel (DIN/EN 590) – A/B Winds creen fluid – A/B
Availability – die cuts as per customer requirement – sealed edges are recommended



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