Acoustic insulation SM400L

polypropylenepolyester

Delivers more acoustic absorption per unit weight vs. competitive products Helps customers meet mass reduction goals Non-woven sound absorbing fibers create a quieter vehicle environment Hydrophobic fibers resist moisture, mold and mildew Product can be converted through standard techniques such as die-cutting Global portfolio and technical expertise help ensure you choose the right solution to meet your goals 3M™ Thinsulate™ Acoustic Insulation SM400L absorbs sounds to provide superior acoustic control in vehicles. Our automotive acoustic insulation can be used for a variety of sound management applications. Thinsulate acoustic insulation has extremely efficient sound absorption properties, allowing OEMs to use only what they need to make a difference in sound abatement. Absorbs Noise So That Passengers Ride in Comfort To make the ride in vehicles more comfortable for passengers, 3M™ Thinsulate™ Acoustic Insulation SM400L (PDF, 70.75 Kb) absorbs noise so that it is quieter in the interior of vehicles. Our automotive acoustic insulation is made from a unique combination of fine microfibers that absorb high frequency noise and thicker fibers that provide recovery and loft. It is compressible, lightweight, conformable and can be easily die cut, heat sealed and thermally or sonically bonded to many substrates. How Thinsulate Acoustic Insulation Works Our insulation is a unique non-woven acoustic absorber composed of polyester and polypropylene fibers. The polypropylene fibers are extremely fine, producing a high-energy absorption characteristic with low weight. The polyester fibers are added to strengthen the web, while the scrim protects and contains the fibers.