Diffusion Alloys provides coatings that conform to ASTM standards for diffusion coatings and that conform to customer defined specifications.

We also work with our customers to develop, analyse, and test diffusion coatings specific to our customer’s system requirements.

We invest significant resources, working alongside our customers to develop bespoke diffusion coatings. By fusing our customer’s knowledge of their application and technology with depth of knowledge in diffusion coatings we endeavour to produce the best advanced coating delivering improved performance specific to an application.

We understand our customers development schedules and can design and deliver a coatings development program efficiently and effectively whilst also providing practical input and solutions for productionising and commercial viability.

For more information, please click here to contact Diffusion Alloys.

We are at the forefront of applications for clean energy and the hydrogen industry.

Large-scale hydrogen generation

Hydrogen electrolysers (SOE)

Fuel cells (SOFC)

Energy storage


Other specialist life extension

With over 60 years of industry experience, we're a global specialist in the application of a range of protective coatings against metal degradation.

We have been supplying diffusion coating services for over 60 years. In 1955 the Company became the first company world-wide to launch chromising as a commercial industrial diffusion coating.


We have decades of experience in coatings for the industrial gas turbine market and the oil, gas and process industries and have developed a leading position in diffusion coating for clean technology applications.


We consider the Health & Safety of its employees, customers, visitors and the general public to be of prime importance. We take an ethical approach to our environmental responsibility & waste management.


We pride ourselves on consistently scoring as best coating supplier for quality with a number of our major and long term customers which is testimony to our quality management system.