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H2 proven elastomers

Hydrogen presents a new and unique set of challenges. Materials need to be tested and evaluated, with selections supported by evidence.

A select range of elastomers has been identified, tested and evaluated specifically for hydrogen applications.

Our materials have been put through a combination of independent third party testing, in-house validation and customer feedback, including in low temperatures and evaluated in rapid gas decompression (RGD) environments to prove their suitability for the challenges of hydrogen service.

Compounds are available with data and evidence to support material selection for challenging applications including:

  • Rapid gas decompression resistance
  • Low temperature capability
  • Permeability
  • High temperatures
  • High pressures

As the industry evolves our investment in testing and development will continue and this list will expand, so please contact us for the latest information.


H2 proven products and materials

Our range of products and materials that have been independently third party tested and are validated by James Walker for sealing applications in hydrogen service.

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H2 proven products and materials


Whilst a decision on the proposed PFAS regulation, and the likely timeline for implementation, are still being considered by the ECHA, James Walker is proactively looking at, and qualifying, alternative materials and working with its suppliers to ensure sealing materials are available that will offer the required levels of performance and be compliant with any proposed regulations.

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Expert to Expert

Want to discuss your project, engineering or materials challenge expert to expert? Simply provide us with your contact details and a little information about the application you are working on, and one of our experts will contact you as soon as possible.

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