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  • 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500C
  • 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500C

    Part Number HT500C3M ID B40068166
    • Material is engineered specifically as a high-temp automotive acoustic absorber
    • Non-woven fibers deliver higher sound absorption performance vs. PU foam parts
    • Resists temperatures of 302°F (150°C) for 336 hours or 356°F (180°C) for 48 hours
    • Hydrophobic fibers resist moisture, mold and mildew
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    Product Details
    • Material is engineered specifically as a high-temp automotive acoustic absorber
    • Non-woven fibers deliver higher sound absorption performance vs. PU foam parts
    • Resists temperatures of 302°F (150°C) for 336 hours or 356°F (180°C) for 48 hours
    • Hydrophobic fibers resist moisture, mold and mildew
    • Material does not require special handling typically associated with fiberglass
    • Black scrim designed for cosmetic purposes
    • Can be converted into shapes and configurations to fit OEM and Tier application needs

    Our 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500C is a material featuring a web of polyester fibers for automotive sound absorption even in high-temperature applications. It resists temps up to 356°F (180°C) for 48 hours, making it excellent for use inside engine compartments. A durable black scrim reinforces the web and resists chemicals and fluids.

    Automotive Noise Reduction at High Temperatures
    Featuring advanced fiber technology, 3M™ Thinsulate™ High Temperature Acoustic Absorber HT500C (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. Its internal polyester web is designed specifically to absorb vibration and help reduce unwanted noise from traveling throughout vehicles, and its black external scrim resists common engine fluids. The material can be die-cut into complex shapes and configurations.

    Properties of 3M™ Thinsulate™ Acoustic Absorber HT500C
    Thinsulate High Temperature Acoustic Absorber HT500C features an overall thickness of 23 mm and a basis weight of 568 g/m2. Non-irritating fiber material won't produce dust during processing or installation and doesn't require any special handling. The fiber web is hydrophobic, meaning it resists moisture and greatly reduces the chance for mold and mildew to develop over time. The black scrim designed for to resist fluids and to give a finished appearance that integrates well into the engine compartment.

    Highly Convertible for Design Freedom
    Easily processed by conventional techniques such as die-cutting, our Thinsulate High Temperature Acoustic Absorber HT500C 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 blocks the transmission of 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.


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