Multi-Layer Composite High-Damping Vibration Damper

APPLICATION SCENARIOS

1. Vehicle floor system, enhancing low-frequency sound insulation effect and structural damping  

2. Firewall and transmission tunnel areas, effectively blocking engine and road noise  

3. Wheel arches and trunk side walls, reducing tire noise and structural resonance  

4. Inner door panels of luxury vehicles, enhancing audio sound performance and overall vehicle quietness

Product Description

Multi-layer composite high-damping vibration damping sheet (also known as damping pads or shock absorbing plates) adopts a multi-layer structural design, composed of butyl rubber with different properties composited with aluminum foil. Through formulation and structural optimization, it broadens the glass transition temperature range and improves damping efficiency. The product has a composite loss factor of ≥0.4, mainly applied to parts with strong vibration such as chassis and trunks, featuring high vibration absorption, strong adhesion, moisture-proof and anti-aging properties. It is easy to construct, adapts to complex sheet metal structures, and can effectively improve the vehicle's overall NVH performance as well as the quiet and comfortable driving/riding experience.

PRODUCT FUNCTION

High-efficiency vibration absorption and noise reduction: The multi-layer butyl damping structure synergistically absorbs resonance energy, effectively alleviating sheet metal vibration;  

Strong adaptability to wide temperature ranges: With a broad glass transition temperature range, it maintains high damping properties even at low temperatures;  

Synergistic optimization of NVH performance with sound insulation cotton: Combined use can further reduce road noise, wind noise, and engine noise;  

Excellent environmental adaptability: Anti-aging, moisture-proof, and anti-shedding, suitable for harsh operating environments;  

Easy construction and cutting: Featuring a self-adhesive backing, it supports free cutting according to vehicle models or structures, adapting to complex irregular surfaces.

PERFORMANCE INDEX

Composite loss factor: ≥0.4 (high damping level)  

Structural design: Multi-layer butyl rubber + aluminum foil reflective layer + pressure-sensitive adhesive + release paper  

Applicable temperature range: -50℃ ~ 100℃  

Recommended construction temperature: 10℃ ~ 40℃  

Adhesion performance: Closely adheres to sheet metal with strong bonding, no hollowing, and adapts to irregular surfaces  

Durability indicators: Anti-aging, moisture-proof, mildew-proof; non-hardening and non-edge warping during long-term use  

Optional environmental standards: Customizable versions available to meet regulatory requirements such as RoHS2.0, REACH, PAHs, TSCA, EN45545, etc.

APPLICATION AREA

This product is particularly suitable for scenarios requiring high-performance vehicle vibration control, including but not limited to:  

Automotive chassis/floor vibration isolation and noise reduction: Absorbs bottom resonance and mechanical vibrations, enhancing interior quietness;  

Trunk area: Suppresses rear metal resonance and improves sound insulation in enclosed spaces;  

New energy/high-performance vehicles: Meets the dual requirements of lightweight design and high NVH standards;  

Modified vehicles, RVs, commercial vehicles, etc.: Used in full-vehicle noise reduction upgrade projects to enhance riding quality;  

Noise reduction treatment for sheet metal structural components of rail vehicles: Adapts to engineering scenarios requiring damping and vibration absorption over a wider temperature range.