7 Aug 2026
Technical paper by Nithin Sebastian Kuncheria of Wales-based elastomer formulation specialist Clwyd Compounders
Wrexham, UK – The global transition toward a low carbon energy system has accelerated the search for scalable, clean energy carriers capable of supporting future industrial, transportation and power generation demands.
Among the technologies emerging from this shift, hydrogen has gained significant prominence due to its high energy density, broad applicability across sectors, and its potential to substantially reduce greenhouse gas emissions when produced from renewable or low carbon pathways.
However, hydrogen’s unique physical properties – including its low molecular weight, high diffusivity, and capacity to permeate and embrittle materials – pose stringent demands on the selection and design of engineering components.
Elastomers are among the most critical materials in this context, serving as seals, gaskets, membranes and hoses throughout the hydrogen value chain.
Yet conventional rubber formulations often suffer from hydrogen induced swelling, blistering and cracking, particularly under cyclic pressure exposures or in low temperature service.
This paper examines the formulation, performance requirements and material selection strategies necessary for developing elastomeric compounds tailored for low temperature hydrogen service.
Through understanding hydrogen – rubber interactions, permeation and decompression mechanisms, compounding principles and test methodologies, this work aims to support the creation of safer, more durable materials for next generation hydrogen systems.
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