What is Anodizing?

By: | August 14 , 2020

Anodizing is the process of coating Aluminium through an electrochemical process with a layer of aluminium oxide that helps in protecting the aluminium beneath it. Nonferrous metals like Aluminium, Magnesium and Titanium can be anodized.

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Anodizing is the process of controlled oxidation in which the substrate is immersed in an electrolyte bath and a current is passed through it.This process results in a coating layer on the Aluminium. No steel should be present in any of the substrates as the acid bath can attack and dissolve the steel parts

  • Anodizing creates a protective layer and durable finish which makes the aluminium extrusions resistant to wear and tear.
  • Anodizing can be done in a variety of colours and it gives a very aesthetic metallic look to the aluminium.These colours are long lasting.
  • Anodizing makes the metal weather resistant; they are widely used in the Architecture and Construction industry especially for the Exterior facades and the Building envelope.
  • Anodized Aluminium is very easy to maintain.
  • The main disadvantage of anodizing is that the material lacks chemical resistance. A long term exposure of the anodic coating to external weather might cause it to break down and crack.

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