3M™ Thinsulate™ High Temperature Acoustic Absorber HT500P

Automotive Noise Reduction at High Temperatures
Featuring advanced fiber technology, 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500P (PDF, 299.41 Kb) is designed for durable automotive NVH reduction in high-temperature environments such as automotive engine compartment applications. This material is designed and tested to withstand temperatures up to 302°F/150°C for 336 hours or 356°F/180°C for 48 hours. The internal polyester web is designed specifically to absorb vibration and help reduce unwanted noise from traveling throughout vehicles, and the black external scrim resists common engine fluids.

Properties of 3M™ Thinsulate™ Acoustic Absorber HT500P
Thinsulate High Temperature Acoustic Absorber HT500P features an overall thickness of 23 mm and a basis weight of 568 g/m2. It is moldable and can be die-cut into a variety of standard flat parts with sealed edges. It can easily be attached to many substrates through common OEM methods such as heat staking or ultrasonic welding. The Thinsulate HT Series passes FMVSS 302 test requirements for horizontal flammability resistance..

Highly Convertible for Design Freedom
Our 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500P is easily processed by conventional techniques such as die-cutting, and can be converted into a wide range of shapes and configurations to fit OEM and Tier application needs. It attaches to many substrates using conventional clips, heat staking or ultrasonic welding.

Recommended Applications:

• Automotive underhood
• Engine under covers and beauty covers
• Battery covers
• Hoodliners
• Front of dash panels

The Science Behind Noise Absorption with Thinsulate Products
All sound is transmitted through physical vibrations. Where many acoustic insulation products act as a damper or a barrier that simply block the transmission these vibrations from a source to other locations, our Thinsulate acoustic absorbers and insulation are engineered to absorb them instead. Tiny fibers are manufactured to exact diameters and assembled into a web. As physical vibrations pass through this web, it essentially tunes them to differing frequencies. This absorption process converts vibration from physical energy — which causes noise and discomfort — into heat, which dissipates quickly and quietly. The result is a quieter, smoother, more comfortable space inside the vehicle cabin, and another example of how 3M applies science to life.