Soundproofing materials not only contribute to the reduction of a car’s noise level, but have also become an important element of eco-friendly strategies in the automotive industry. What matters now is both the performance of sound insulation and the reduction of its environmental impact throughout its entire life cycle. The focus is on the use of renewable raw materials and materials that can be recycled or biodegraded in an environmentally friendly way. These sustainable solutions include single-material EPP foams, which are 100% recyclable, or biodegradable plastic components used in place of traditional polyurethane foams. Recyclable materials stand out not only for their lower carbon footprint from the raw material extraction phase, but also for allowing the implementation of circular economy principles. It is worth mentioning that modern technologies for manufacturing acoustic materials help reduce a vehicle’s carbon footprint at various stages, from manufacturing to operation and disposal.  

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Thanks to advanced pneumatic injection technology, it is possible to optimize water consumption, reduce the temperature of the foaming process, and minimize production waste. The use of renewable energy sources in production lines also contributes to the reduction of CO2 emissions associated with the production of materials. Lighter foam components reduce the overall weight of the vehicle, which directly impacts combustion, thereby reducing fuel consumption (or energy consumption in hybrid and electric vehicles) and carbon footprint during operation. In addition, at the end of the vehicle’s useful life, these components can be easily reused in new cars. Recycling technologies are the ideal response to the increasingly stringent requirements of the European Green Deal, such as the End-of-Life Vehicles Directive, which recommends that at least 25% of plastics used in vehicle construction should be recycled.