Toray Unveils PFAS-Free Flexible PPS Resin with Flame Retardancy and Heat Resistance

Key highlights
  • Toray developed a PFAS-free flexible PPS resin with flame retardancy and heat resistance.
  • The material is intended for cooling pipes, wiring components, and electrical parts.
  • Toray began supplying paid samples in January 2026 and plans mass production within fiscal 2026.
  • The resin uses NANOALLOY® technology for improved performance over conventional PPS resins.

Introduction

Toray Industries, Inc. has developed a high-performance flexible polyphenylene sulfide (PPS) resin that offers excellent flame retardancy and heat resistance. This new material is free of per- and poly-fluoroalkyl substances (PFAS), providing a cost advantage over fluoropolymers.

Applications and Benefits

The PPS resin is suitable for use in cooling pipes, fittings, fasteners, protective components, and electrical parts. It helps reduce the number of parts and simplifies processes, addressing the growing complexity of components in electrified vehicles and data centers.

Technological Advancements

Toray's innovative NANOALLOY® microstructure control technology is key to the resin's performance. It finely disperses a new flexible component within the PPS polymer, replacing elastomers. The material achieves a V-0 classification under UL94 for flame retardancy and surpasses conventional flexible PPS resins in heat resistance and lightness.

Market Introduction

Since January 2026, Toray has been supplying paid samples for applications in battery peripheral and semiconductor manufacturing equipment. The company plans to establish a mass production structure within fiscal 2026, targeting diverse applications requiring high temperatures and reliability.

Source: Toray

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