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Industry and lab groups report several promising routes to reduce or replace 6PPD in tires

6PPD State of the Science Forum (Day 2) · December 10, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

Presenters from Flexus, Lanxis, Faradayne and others described non‑PPD chemistries, CCPD testing, graphene additives, and candidate molecules that aim to preserve tire performance while reducing aquatic toxicity; several groups said data release will follow IP protection and further testing.

Multiple industry and laboratory presenters described alternative approaches to reduce or eliminate 6PPD and its quinone transformation products from tire wear.

Neil Smith of Flexus said the company has ideated and synthesized thousands of candidate molecules and, after multi‑year testing, has a small set that meet internal performance, environmental, and mammalian toxicity criteria. Flexus intends to secure intellectual‑property protection before releasing full datasets but committed to data sharing after IP is in place.

Audrey Bethune of Lanxis presented GLP environmental fate and…

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