Experts in Hard Anodising Services

Suppliers to a number of F1 and Formula E Teams.

We are a dedicated provider of specialist metal finishing services, concentrating primarily on anodising, electroless nickel plating and conversion coatings.

Your Premier Metal Finishing Company

Welcome to Hard Anodising Surface Treatments Ltd, a leading metal finishers and surface treatment company dedicated to elevating the performance and durability of your components. Specialising in anodising, electroless nickel plating, and conversion coatings, we serve a diverse range of industries including aerospace, automotive, and defence.

Our Expertise

  • Hard Anodising: Enhance the wear resistance and durability of your components.
  • Electroless Nickel Plating: Achieve uniform, corrosion-resistant coatings for a variety of applications.
  • Conversion Coatings: Opt for advanced surface treatments like Alochrom 1200 and Iridite for superior protection.

Innovative Solutions in Anodising and Plating

Our commitment to innovation is evident in our wide range of services. From hard anodising to sulphuric acid anodising, electroless nickel plating to chromic acid anodising, we offer solutions that are at the forefront of technological advancement. These services are not just about enhancing the appearance of metals; they are about extending their lifespan, improving their wear resistance, and ensuring they can withstand even the most challenging environments.

Why Choose Us

Decades of Experience: Trust in our expertise as seasoned metal finishers.

Custom Solutions: Tailored services to meet your specific requirements.

Industry Leaders: A preferred surface finishing company for F1 and Formula E Teams.

Hard Anodising

Hard anodising is a branch of sulphuric acid anodising where process conditions have been pushed in a certain direction to achieve significantly harder, thicker, denser films.

Due to the multiplicity of variables influencing coating performance, it is challenging to convey in writing the possibilities and constraints of the process.

However, applications involve resistance to wear, corrosion, temperature effects etc.


View All Services

Hard Anodising Surface Treatments Ltd offers a wide range of anodising services meeting a huge list of industry specifications. To find if we can meet your requirements please visit our Specifications page.

View more about our services


Hard Anodising Surface Treatments Ltd is one of the world’s most advanced suppliers of anodising services, providing to the Aerospace, Defence, Automotive and Precision Engineering sectors…

Aerospace & Defence

Precision engineered parts approved for aerospace or defence must be handled carefully and to a top standard. Hard Anodising Surface Treatments Ltd are constantly improving processes and services to achieve this.

Read more about our metal finishing services for the aerospace industry.

Motor / Automotive

To increase the abrasion and corrosion resistance of the surfaces frequently used in motorsport, numerous surface treatmentss are available. 

Learn more information about the anodising services we offer for the automotive industry.

Oil & Gas

Aluminium components often in use in the oil and gas industry will have its abrasion slowed down by a strong anodic coating. We have a dedication to offer the very best hard anodising services.

Learn more about our processes and how we can assist you in the oil and gas industry.

Our Anodising Services

Hard Anodising

Hard Anodising Services

The anodising process provides a method of electrolytically increasing the thickness of the naturally occurring oxide film…

hard anodising services - chromic-acid-anodising-thumb

Chromic Acid Anodising

Compared with sulphuric acid anodising, the chromic acid anodising process gives relatively soft, thin coatings…

hard anodising services - Conversion Coatings

Conversion Coatings

Chromate conversion coatings are obtained by chemical reaction with the metal being treated to form a complex chromate film…

Electroless Nickel Plating

Electroless Nickel Plating is produced by a chemical process alone without the need for an electric current…

hard anodising services - Stainless steel passivation

Passivation of Stainless Steels

Passivation of stainless steel parts removes impurities picked up from previous manufacturing operations; fragments…

hard anodising services- Selective Coating Masking

Selective Coating/Masking

Masking is applied to preserve close-tolerance dimensions such as threads; to maintain electrical conductivity…

hard anodising services- Sulphuric Acid Anodising

Sulphuric Acid Anodising

The types of sulphuric acid are sub-divided into classes mainly determined by the field of application…

Customised Metal Finishing for Diverse Applications

We understand that each industry has its unique requirements. That’s why we offer customised metal finishing solutions. Whether it’s creating components that can endure the high-stress conditions of motorsport racing or providing anodising services that meet the rigorous standards of the oil and gas sector, our team is equipped with the knowledge and expertise to deliver bespoke solutions.

A Commitment to Quality and Environmental Responsibility

We invite Aerospace and Defence industry partners to experience the difference our specialised anodising services can make. Whether it’s a bespoke project or a large-scale production requirement, our team is equipped to provide solutions that meet your specific needs. Get in touch with us to discuss how we can support your projects with our expert anodising services, tailored specifically for the Aerospace and Defence sectors.

Quality is at the heart of everything we do. Our processes are not only designed to meet but exceed industry standards. This commitment to quality goes hand in hand with our dedication to environmental responsibility. We employ eco-friendly practices in our operations, ensuring that our impact on the planet is minimised while maintaining the high standards our clients expect.

Our commitment to continuous improvement and innovation ensures we remain at the forefront as a leading surface treatment company.

Don’t let corrosion and wear compromise your components.

Connect with us today to explore our solutions and elevate your project’s success.

Visit our website for more information and expert guidance.

Let’s safeguard your components together with Hard Anodising’s expertise.


How do Hard Anodising's coatings contribute to the longevity of metal components?
Our coatings form a durable barrier that reduces wear and tear, extending the lifespan of the components significantly, especially in demanding industrial applications.
Can Hard Anodising's conversion coatings be customised for unique industry requirements?
Absolutely. We work closely with clients to tailor our coatings to meet specific industry standards and operational needs, ensuring optimal performance.
Are the coatings environmentally friendly and compliant with industry regulations?
Yes, our coatings are developed to be eco-friendly and comply with all relevant industry regulations, ensuring both safety and sustainability.
What makes Hard Anodising stand out as a surface treatment company?
Our commitment to quality, innovation, and customer satisfaction sets us apart, making us a trusted partner in metal finishing services.

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