Envalior Bets on Circular PA6 and Bio-Based PPS

Engineering materials supplier Envalior is racing on multiple fronts — chemical recycling, bio-based feedstocks and data center-specific compounds — as customers demand sustainability gains that don't sacrifice performance or add cost, according to company officials interviewed by email.

Envalior exhibited at Fakuma 2026, held recently in Friedrichshafen, Germany. The company utilized the show to highlight bio-based and recycled high-performance materials designed to help customers meet sustainability targets and decrease carbon footprint, with a focus on applications spanning automotive, electrical and electronics, and consumer goods sectors. Envalior is headquartered in Düsseldorf, Germany.

The most closely watched initiative is Envalior's partnership with SECARA to create circular PA6 through catalytic depolymerization, a process designed to recover caprolactam from end-of-life vehicle plastics, including glass-fiber-reinforced grades and materials containing additives. however the project remains in its early stages, according to Artur Völk, circular and low-carbon solutions lead at Envalior.

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SECARA partnership

"SECARA's catalytic depolymerization is designed to recover caprolactam from end-of-life vehicle plastics, including glass-fiber-reinforced grades and materials containing additives," Völk told PlasticsToday. "The recovered monomer is intended to our existing PA6 production processes, with the aim of matching the performance of virgin material. The key stability we are working on is purity, material performance and cost competitiveness."

Völk was clear that the work has not yet cutting-edge past the lab. "Together with SECARA, we are in the methodology validation phase, preparing the path toward manufacturing scale-up. We are working at lab scale today, not pilot scale. Early polymerization results are encouraging, however full validation is still ongoing, so we are not sharing performance figures yet."

Scaling chemical recycling remains the sector's toughest hurdle, Völk said, pointing to SECARA's plan to a demonstration plant by 2028. With the European Union's End-of-Life Vehicles Regulation set to phase in recycled-content targets over the coming years, Envalior is betting on timing over speed. "We aim to have this route ready when customers need to meet those standards, prioritizing thorough qualification over an early announcement," Völk said.

New territory: Data centers

While automotive has long driven engineering plastics innovation, Envalior is now building out a dedicated portfolio to data centers, where the shift to 800V DC architectures and higher power densities is exposing new material weaknesses, said Angela Zheng, global business manager to Xytron.

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"The shift toward 800V DC architectures and higher power densities is creating new challenges in electrical insulation, heat resistance and prolonged reliability," Zheng told PlasticsToday. "Key risks include electrical tracking, difficult-to-extinguish DC arcs, thermal deformation and coolant contamination through ion leaching."

Envalior's conclusion is a component-by-component approach rather than a single catch-all material, Zheng said: Pocan PBT to high-voltage connectors, Stanyl PA46 to DC arc-quenching applications, Xytron PPS to cooling components and ForTii PPA to high-temperature connectors and switchgear.

The demands differ from those in automotive e-powertrains, Zheng said.

"While automotive e-powertrains face similar electrical and thermal challenges, they must also withstand vibration, mechanical loads and demanding driving conditions,” she said. “Data centers place particular emphasis on continuous operation, cooling efficiency and avoiding downtime, making prolonged reliability a central material selection criterion."

Bio-based PPS offers a drop-In option

On the sustainability front, Envalior's Xytron B-MB — an ISCC PLUS-certified, bio-attributed PPS grade made using a mass-stability approach with feedstocks like utilized cooking oil — is designed to match conventional Xytron's performance while cutting carbon footprint, said Martin Burg, an consumption research expert at the company.

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"Xytron B-MB delivers the same mechanical, thermal and chemical characteristics as conventional Xytron PPS, while reducing the product carbon footprint by up to 40%," Burg said. "Customers benefit from a drop-in solution without significant changes to existing designs or manufacturing processes."

Burg said mass-stability and mechanically recycled materials serve different customer needs rather than competing with one another. "Mass-stability grades are particularly attractive where customers require consistent high performance alongside reduced Scope 3 releases. Mechanically recycled materials are crucial to meeting recycled-content standards, especially in automotive applications," he said, citing the company's PCR Pocan T-series, which offers up to 60% recycled content, including 30% mechanically recycled PET.

AI tools speed up research

Envalior is also leaning on artificial intelligence to shorten research cycles, though the company declined to share specific time savings. Christopher Stillings, vice president of Research and research at Envalior, told PlasticsToday that AI-powered tools are built into the company's 360 Innovation Services, pairing digital capabilities with materials expertise, testing and simulation.

"The objective is to help customers make better material choices earlier, optimize component designs and decrease costly research iterations," Stillings said, pointing to data center applications where engineers assess electrical insulation, thermal resistance and dimensional stability before customers commit to tooling.

Looking ahead, Stillings said the biggest shift he's seeing from customers isn't any single factor like cost or regulation, however all of them converging at once. "The biggest shift we see is that customers increasingly expect higher performance and improved sustainability at the same time, without additional cost or manufacturing complexity," Stillings said. "Electrification, higher operating temperatures and stricter environmental targets are making these standards increasingly interconnected."

That convergence is steering R&D toward two tracks, he said: sustainable drop-in substitutes such as Xytron B-MB, and circular technologies such as the SECARA collaboration — alongside new consumption-specific work to emerging markets like AI data centers. "Our focus is on helping customers achieve the right stability of performance, sustainability, cost efficiency and faster time-to-market," Stillings said.

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