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Vibration control, sound insulation, shock absorption, lightweight - Sound Proof Series

A lightweight, vibration-damping, and sound-absorbing material that combines a damping paint exhibiting a unique vibration attenuation mechanism with various fibrous bodies.

[Sound Proof Non-Woven Fabric Impregnation Series] This is a lightweight, vibration-damping, and sound-absorbing material that combines a vibration-damping coating (paint) exhibiting a unique vibration attenuation mechanism with various fibrous bodies (needle-punched felt, spunbond). ◎ To provide excellent soundproofing capabilities for drive system equipment (compressors, vehicles, etc.), it is important to quickly reduce material vibrations that contribute to noise (vibration-damping function). ◎ There is a loss coefficient (the larger the value, the higher the performance) as an evaluation index for vibration-damping performance (vibration absorption capacity), but to increase this value, it was necessary to increase the material surface density according to the mass law. ◎ Sound Proof is a new functional material that possesses lightweight and excellent vibration-damping and sound-absorbing performance by combining a vibration-damping coating with a special filler with fibrous bodies and others.

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basic information

Composite of Recycled Materials and Soundproofing A composite of various recycled materials (recycled PET, non-woven felt, chip polyurethane, etc.) used in the automotive industry and many other sectors, along with soundproofing vibration-damping materials (coatings), can lead to the development of cost-effective and high-performance vibration-damping sound-absorbing materials. Current Considerations and Adoption Cases Automotive vibration-damping sound-absorbing composite materials (hybrid performance achieved through various impregnation methods) have received high evaluations from users currently undergoing physical property testing, particularly for gasoline and EV vehicles. Vibration Damping Materials for Metal Roofs In the context of metal roofs, these materials are being adopted as rain noise countermeasures in bike parking areas, schools, commercial facilities, etc., replacing existing materials (such as foams). Improvement of Sound Insulation Performance through Plywood and Wall Material Composites The implementation of composites with softwood plywood and interior wall materials has led to improved sound insulation performance, prompting many housing-related companies to begin implementation testing.

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Applications/Examples of results

The implementation in steel plate roofs, vehicle undercovers, and roof silencers is expected to yield various effects such as noise and vibration reduction, as well as insulation and condensation prevention.

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