Zinc Nickel Plating Services
Zinc nickel surface treatment is a preferred specification for a range of industrial applications, particularly in the automotive sector. It provides protection for components exposed to harsh environments, thermal stress or corrosive chemicals.
The next generation zinc nickel corrosion protection
Anochrome has been renowned as the leading job coater for the widely specified zinc nickel plating treatment for many decades.
More recently we secured the exclusive licence to apply NanoGalv® coatings to customer-supplied components in the UK.
Produced by Modumetal, NanoGalv utilises unique zinc nickel chemistry and is applied at nanometer scale in order to achieve greater corrosion protection, increased ductility and controlled co-efficient of friction.
Parts coated with NanoGalv – either by barrel or rack – have an average lifespan three times greater than those treated with standard zinc nickel, meaning less material usage and reduced maintenance.
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How it Works
Zinc nickel plating involves adding 12–15% (by weight) of nickel to the plating process. This enhances performance significantly compared with standard electroplated zinc or zinc-iron systems. Anochrome can meet most automotive specifications, including Ford S450, and with black passivation, SJ450b.
Benefits of Zinc Nickel Plating
Zinc nickel plating offers enhanced corrosion resistance – at least double that of zinc for the same thickness.
Other operational advantages include good temperature stability, with performance maintained at temperatures up to 120°C.
It offers excellent ductility and sacrificial protection as the coating can withstand cracks caused by metal movement.
Hydrogen embrittlement is also reduced, improving overall component reliability.
Plating Methods
Anochrome offers two primary methods of zinc nickel plating, tailored to the size and complexity of components.
Barrel Plating
The barrel process is ideal for small parts such as screws, fasteners, nuts, bolts, brake pipes, calipers and steering components. Items are placed in a perforated, non-conductive barrel and tumbled through a series of plating tanks.
This highly cost-effective method ensures even coverage and is widely used in the automotive sector. Additional top coats and torque-modifying solutions can be applied as part of the barrel plating process.
Rack Plating
Rack plating is suited for larger or more complex components. Parts are mounted on electrically conductive jigs or racks and submerged in plating solutions. While more labour-intensive, rack plating offers precise control over the coating process, making it ideal for specialised applications.
Anochrome is a leading job rack plating specialist in the UK, delivering consistent, high-quality results for demanding industrial requirements.
Specifications and Quality Assurance
Anochrome ensures all zinc nickel plating meets rigorous industry standards. Our processes deliver high-performance coatings that combine corrosion resistance, thermal stability, and mechanical durability, supporting both automotive and industrial applications.
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