Evolon® sound absorption layer for automotive applications
- Mobility & Transport
- Interiors
- Evolon
Effective noise reduction for a more comfortable driving experience
Evolon®
Sound absorption layer for car interiors
To achieve optimal acoustics and driving comfort, modern cars need effective noise reduction. Acoustic composites based on Evolon® technology are ideal for this. They help to:
- reduce weight and thus reduce fuel consumption
- improve acoustic performance
- boost processing efficiency.
Evolon® technology is used in various automotive acoustic applications – from interior cladding for dashboards and use in engine compartments to noise-reducing nonwoven mats.
Key Features
- Ideal porosity and density
- Minimum thickness thanks to its high-performance microfilament structure
- Ultra-lightweight, contributing to overall vehicle weight reduction
- Flexible processing options: can be converted, sewn, or thermo-molded
- Optional functional treatments, such as polyethylene (PE) adhesive backing, flame-retardancy, and oleophobic or hydrophobic finishes
- Available widths: up to 2.2 m
Key Benefits
- Optimum sound absorption between 800 and 4000 Hz: the nonwoven is specifically engineered to target the frequency range most relevant for automotive noise, such as engine, road, and wind sounds – providing noticeable improvements in cabin acoustics and passenger comfort.
- Optimal and customizable air flow resistance from 150 to 3000 Rayls: the material can be fine-tuned to meet specific acoustic requirements, ensuring an ideal balance between sound absorption and breathability across a range of vehicle applications.
Sound absorption with Evolon® microfilament technology
Evolon® microfilaments are up to 100 times thinner than a human hair and provide outstanding noise absorption.
The tightly entangled multi-directional microfilaments create millions of “micro” air channels, enabling the optimum air permeability required to absorb sound energy.