Anodising is a surface treatment of aluminium in which the aluminium surface is given new protective and decorative qualities.

Embossed and anodised aluminium sheets from RMIG used for Oslo Opera House

Perforated anodised aluminium sheets are used more and more - for aesthetic, architectural or technical reasons. The untreated raw aluminium surface is very sensitive and susceptible to corrosion from atmospheric conditions. Untreated aluminium becomes dull and grey in time, whereas an anodised surface will keep its looks for many years – practically without maintenance.

When required, RMIG can arrange the anodising of your perforated sheets in natural or coloured finishes.

Advantages of anodising

  • Improved corrosion resistance
  • Superb colour stability
  • Low fingerprint sensitivity
  • Scratch resistance for high value products
  • Possibility for a different decorative surface, e.g. by colouring

For indoor use we generally recommend an anodising of minimum 10 micrometres (10 mµ) on one side, and for outdoor use we generally recommend an anodising of minimum 20 micrometres (20 mµ) on one side (the side visible).  

Materials suitable for anodising

Please follow this link for more information on materials suitable and not suitable for anodising. 

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