Walker has extensive in-house Plating and Painting capability which holds NADCAP Gold Merit approval for many of the processes carried out.  Full control of the processes and lead times allows us to optimise deliveries of fully finished parts to the customer.

Here is a brief overview of the surface treatment types available:


The plating department has benefitted from a multi-million-pound investment in automated processing lines and a wide range of finishes is offered including:

  • Chromate
  • SurTec 650 and SurTec 650V
  • Anodising
  • Hard Anodising
  • Electroless Nickel
  • Zinc
  • Zinc Nickel
  • Passivation
  • Soft Gold
  • Hard Gold
  • Silver


  • Wet spray painting (e.g 2-pack epoxy)


  • X-Ray fluorescence thickness measurement
  • Visual microscope investigation
  • Adhesion testing
  • Environmental testing

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Providing innovative manufacturing solutions for high-criticality global applications.