3M™ Thinsulate™ SM600L Acoustic Thermal Sound Deadening Insulation for Automotive Camper and Cargo Vans

Sold in convenient Pre-Cut 10-ft sections for simple handling and installation. Making van building faster and efficient 

3M™ Thinsulate™ Acoustic Insulation SM600L is a lightweight, non-woven material engineered to enhance vehicle cabin comfort by effectively absorbing noise. Its unique blend of fine microfibers targets high-frequency sounds, while thicker fibers provide structure and loft, resulting in superior acoustic performance.

By integrating 3M™ Thinsulate™ Acoustic Insulation SM600L, manufacturers can enhance passenger comfort through effective noise reduction while supporting vehicle weight optimization objectives.

3M Thinsulate comes compressed from the factory, and Kei Project also ships it compressed for easier handling and installation. SM600L is typically about 1/2" to 3/4" thick when it comes off the roll. It will naturally expand over time, though full re-lofting can take several weeks. For best results, we recommend installing it while compressed and allowing it to expand after installation.

3M™ Thinsulate™ SM600L Technical Data Sheet

3M Regulatory Data Sheet

3M Articles Sheet

3M™ Thinsulate™ Acoustic Insulation Authorized Converter

As an Authorized Converter for 3M™ Insulation, we deliver Genuine 3M™ Thinsulate™ Acoustic Insulation SM600L with converter-grade quality, consistent supply, and lot-level traceability.