AFC Anodising & Finishing

2-4 Seagull Lane, Emsworth, Hampshire, UK, PO10 7QH
Telephone: +44 (0) 2392 008518



Compared with sulphuric acid anodising, the chromic acid anodising process gives relatively soft, thin coatings, normally of two to five microns thickness.





The chromic anodising process is used where a high resistance to corrosion is required, where crack detection is a subsidiary requirement, for the treatment of aluminium assemblies where there must be no corrosion risk from trapped electrolyte (a common problem with sulphuric anodising) and for the production of opaque enamel-like self coloured grey/black finishes for decorative use.


Key Strengths:


There are a number of key features that make chromic anodising key for particular applications:


  • Ideal for castings
  • Minimised loss of fatigue strength due to anodising
  • No risk of sulphuric acid entrapment and associated post treatment corrosion
  • Ideal for treatment of material less than 0.25mm thick
  • Compatible with explosives, propellants and pyrotechnics
  • Related


    • DTD 910 | 2µm
    • Def 03-24 | 2µm
    • Def 151-2 | 2µm
    • Mil-A-8625 Type 1 Class 1 | 2µm



    • Aerospace
    • Defence
    • Foritems (marine)