Radel® PPSU HYRA

Introducing Radel® PPSU HYRA 

Driving progress toward a hydrogen-powered future with advanced materials for structural components. 

At Syensqo, we’re leading the transition to efficient and more scalable hydrogen technology systems across the value chain. 

HYRA, which stands for Hydrogen Related Applications, is a family of polymer materials specifically designed to meet the challenging requirements of green hydrogen-related applications. With this product range, we can open new doors for metal-to-plastic conversion and simplified design, enabling function integration, increased assembly efficiency and cost optimization. 

HYRA embodies progress, performance and innovation, unlocking new possibilities for the future of hydrogen technologies.

Key features and properties of Radel® PPSU HYRA

• Outstanding chemical stability and corrosion resistance in harsh environments (high stability across a large pH range)
• Oxidative stability
• Low ion leaching in acidic environment
• Mechanics retention across a wide temperature range, up to 180°C
• High compressive strength
• Very low creep under sustained load at high temperature
• Thermal and electrical insulation
• Low hydrogen permeability
• Large size processing and metal overmolding capabilities
• Compatible with rubber overmolding process
• Available in low thickness films, e.g. for sub-gaskets applications

Target applications

• Cell frames for alkaline electrolysers
• Cell frame/spacers for PEM electrolysers
• Sub-gaskets for PEM electrolysers and fuel cells

Radel® PPSU HYRA grades portfolio