Powder-Coating vs Anodising - Misc. NZ
Powder-Coating vs Anodising

Powder-Coating vs Anodising

Powder-coating is an organic finish, paint, while anodising is an inorganic finish.

Words by Advance Flooring Systems

So, what is the difference? Anodising is an inorganic finish that is a straightforward electrochemical process, which increases the thickness of the natural oxide layer on aluminium. Powder-coating conversely is a technique used to apply decorative finishes, in a process that electrostatically charges the powder, spraying it onto the aluminium and then it cures in an oven into a smooth coat.

Advantages of Anodising
  • Easy maintenance with periodic cleaning with water and a mild detergent
  • The anodic coating will not peel or flake because it is part of the metal
  • Anodising gives of a translucent metallic appearance because the base metal can be seen underneath the coating
  • Sunlight does not affect it and is predominantly fade resistant
  • Consistent finishing, regardless of angle viewed from
  • There are no VOC’s emitted
Cons of Anodising
  • Surface can be affected by acidic pollutants
  • Potential for colour variation between batches
  • Usually only available in a matt or polished finish
  • Can only be applied to aluminium
Pros of Powder-Coating
  • Dents and scuffs can be easily repaired using liquid coating that matches the original colours
  • Powder-coated aluminium will look the same as other components powder-coated in the same colour/s
  • Huge range of finishes available
  • More colour uniformity between batches
  • No air pollution from the finish
Cons of Powder-Coating
  • Filiform corrosion resembling threadlike filaments may form under the finish if incorrect pre-treatment methods are used
  • If the applied coating film is either too thick or thin, or if the powder coating material is too reactive, orange peel may occur
  • Chalking which looks like white powder on the surface, may appear if the incorrect curing process is used

View our anodising and powder-coating options HERE.

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