Interior components for light vehicles

Sustainability meets acoustic comfort 
Autoneum’s interior floor products are engineered to deliver exceptional acoustic performance, effectively reducing noise for a quieter and more pleasant driving experience. Designed with long-term durability in mind, these components offer high resistance to wear and abrasion while maintaining a premium appearance throughout the vehicle’s lifecycle. Our advanced solutions are built for circularity, utilizing monomaterials with a high share of recycled content to simplify waste management and end-of-life recycling. Additionally, the lower weight of the components helps improve fuel efficiency in combustion vehicles and extends the battery range in electric vehicles.  

Autoneum’s customizable solutions allow OEMs to meet technical and environmental needs without sacrificing performance or design quality.  

Autoneum offers the following products among others for application on the interior floor:

Di-Light is an advanced carpet surface designed to elevate the interior experience in compact and mid-sized vehicles. This next-generation non-woven carpet technology combines superior aesthetics, high functionality and a strong commitment to sustainability.  

• It offers visual appeal with a uniform surface appearance that maintains its look even in complex, contoured areas of the vehicle. Its loftier pile provides a more premium, tactile feel, significantly enhancing the perceived quality of the vehicle interior.  
• The surface is durable and resilient, outperforming conventional non-woven carpets. 
• Engineered for longevity, it resists abrasion and wear in high-traffic zones, ensuring the carpet retains its quality and comfort over time. 

Di-Light also sets new standards in sustainability. Made from up to 97% recycled PET fibers, it is fully recyclable at the end of its lifecycle, with production cut-offs reclaimable for reuse –supporting the circular economy. Additionally, its 20% weight reduction compared to standard carpets helps reduce vehicle weight, contributing to lower fuel consumption and reduced CO₂ emissions.  

Autoneum's Relive-1 tufted carpet technology exemplifies an exceptional environmental performance and superior in-vehicle comfort. Made from recycled PET bottles, Relive-1 reduces plastic waste and conserves natural resources. Furthermore, Autoneum's Alternative Backcoating (ABC) process replaces latex with thermoplastic adhesives, reducing water and energy consumption during production, lowering CO₂ emissions and enabling zero-waste manufacturing and recyclability at the product's end-of-life. Relive-1 also offers:  

• Enhanced durability and maintenance ease due to the vertical alignment of the polyester filaments and inherent water repellency.   
• Robust abrasion resistance compared to standard carpets. 
• Effortless removal of small particles and liquids for a cleaner and more comfortable driving environment. 

 Relive-1 combines sustainability, durability and aesthetic appeal, enhancing both environmental responsibility and user experience in modern vehicles.  

Flexi-Light PET is made from an innovative blend of polyester fibers, primarily derived from recycled PET. Using an advanced manufacturing process, Autoneum can control the orientation of these fibers to create a proprietary felt that matches the acoustic and mechanical performance of polyurethane foam. The material is highly flexible and moldable into three-dimensional shapes, making it especially suitable for interior parts with complex geometries, such as carpets and inner dashes.

Consisting entirely of PET—up to 90% of which is recycled—Flexi-Light PET can also serve as a decoupling layer alongside other PET-based solutions in Autoneum’s portfolio. This compatibility supports complete circularity by enabling both the reuse of production scrap and end-of-life recycling. Flexi-Light PET is part of Autoneum’s Pure technologies, which are designed to ensure strong environmental performance throughout the product’s life cycle.

This innovation builds upon the earlier Flexi-Loft technology, launched by Autoneum in 2021, which utilizes a mix of recycled cotton and polyester fibers. Flexi-Light PET is now available globally as an insulation material for automotive carpets.

N-Join1 uses a single-step process to bond the carpet surface with the substrate, which can include 100% polyester Pure technology components. This simplifies recycling while maintaining design flexibility. The system offers key benefits such as effective noise protection, comfort, and compatibility with Di-Light carpets, which maintain a consistent look even on complex surfaces.

Its monomaterial design allows waste-free production and full recyclability at end-of-life. By avoiding water- and energy-intensive latex, N-Join1 reduces resource use and supports cleaner manufacturing. Compared to traditional systems, it significantly lowers carbon emissions—mainly due to its enhanced recyclability. Suitable for both ICE and electric vehicles, N-Join1 is available in Europe and North America.

Autoneum's ABC (Alternative Back Coating) process uses a roller-coating technique to apply a thermoplastic (hot-melt) adhesive to the back of the carpet face layer. This method effectively secures fibers in needlepunch carpets or filaments in tufted carpets, ensuring durability and stability. By eliminating the need for traditional backing materials, ABC reduces the environmental impact of carpet production, supporting a more sustainable approach without compromising performance or quality.  

Zeta-Light offers a novel damping principle that effectively reduces low-frequency structure-borne vibrations. Its damping performance remains consistent across temperature variations and provides excellent low-frequency noise control. By extending the frequency range of lightweight technologies, Zeta-Light enhances NVH components and simplifies vehicle assembly and logistics. The pods can easily be peeled off at end-of-life, supporting monomaterial concepts and reducing the environmental impact compared to traditional heavy layers.    

Autoneum's Hybrid-Acoustics technology is engineered to control noise where it matters most – in the passenger compartment – using a single material system that handles both insulation and absorption. By adjusting the thickness and density of each area within a component, the technology can be configured to meet specific acoustic needs, such as stronger insulation in the lower dash and more absorption at the upper part. This localized acoustic control is achieved without additional layers or complex material stacks.  

The material is a monomaterial cotton-based structure containing up to 70% recycled content, providing a porous, lightweight alternative to traditional multilayer systems. It is easy to handle and install and is up to 50% lighter than conventional heavy foam solutions, contributing to overall vehicle weight reduction.  

Hybrid-Acoustics simplifies the bill of materials while meeting demanding NVH (noise, vibration, harshness) targets, offering a practical and sustainable option for modern vehicle design.  

The fully-automated IFP-R2 production systems are based on the Rotating Injection Fiber process which is an innovative, patented manufacturing process from Autoneum used for manufacturing tailor-made felt blanks for inner dashes and floor insulators in vehicles. These blanks with locally adjusted area weight are then molded into the shape required for the final product.

The advanced process leads to better acoustics, lower weight and the possibility to locally increase the compressional stiffness of carpet systems for improved quality perception. Autoneum also achieves a higher environmental performance of the production process, as up to 80% of recycled fibers are possible. Reusing this material contributes to a better carbon footprint and thus to the conservation of natural resources.

Functional design, high recycled content
Driven by evolving consumer expectations and new design trends, vehicle interiors are becoming more refined, sustainable and multifunctional. In the trunk area, Autoneum's interior components set the standard by combining performance and aesthetics. Made from a high proportion of recycled materials, these lightweight parts support sustainable manufacturing and enhance the overall design of the vehicle. Their durable, high-quality surfaces and versatile functionality represent the next generation of interior innovation. 

Autoneum offers the following products among others for interior trim application:

Propylat is Autoneum's thermoplastic fiber-based composite technology designed for sustainable, high-performance vehicle components including trunks. It uses Polypropylene (PP) as the base, reinforced with recycled fibers such as PET, cotton, glass and natural fibers like bast, kenaf or hemp. Propylat offers excellent structural integrity and acoustic insulation while remaining lightweight. 

In trunk solutions, Propylat allows manufacturers to customize material density, fiber mix and weight for specific performance and design needs. Its flexible structure enables easy shaping into complex trunk components for a precise fit within the trunk space. With high recycled content, Propylat delivers a strong environmental performance without compromising functionality. 

ProSpace is an advanced trunk parcel shelf solution engineered from a high-performance Polypropylene/Glass-filled polymer/PET-Bico composite. Designed for optimal acoustic management, it delivers superior noise absorption while maintaining structural stiffness at a low weight. ProSpace allows the integration of functional elements such as loudspeaker covers and sun blinds and is available in both fixed and removable designs. With a versatile weight range of 1500–2200 grams per square meter and design flexibility, it meets the requirements of modern automotive interiors. 

IboComb Therm load floor technologies feature a porous Polypropylene/Glass-filled polymer/Paper honeycomb core that allows for acoustic absorption, high stiffness and ultra-lightweight construction. Engineered for modern automotive interiors, its edge-wrapping capability effectively eliminates squeaks and rattles while elevating the visual appeal. 

With up to 100% recycled content, IboComb Therm facilitates innovative interior concepts — including reversible, washable surfaces that redefine durability and comfort. It's the smart choice for sophisticated, resilient vehicle environments.