What is Anodizing

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What is Anodizing?

• ANODIZING... THE FINISH OF CHOICE
• Anodizing is an electrochemical process that
  converts the metal surface into a decorative,
  durable, corrosion-resistant, anodic
  oxide finish. Aluminum is ideally suited to
  anodizing, although other nonferrous metals, such
  as magnesium and titanium, also can be anodized

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• The anodic oxide structure originates from the
  aluminum substrate and is composed entirely of
  aluminum oxide. This aluminum oxide is not
  applied to the surface like paint or plating, but
  is fully integrated with the underlying aluminum
  substrate, so it cannot chip or peel. It has a
  highly ordered, porous structure that allows for
  secondary processes such as coloring and sealing.

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• Anodizing is accomplished by immersing the
  aluminum into an acid electrolyte bath and
  passing an electric current through the medium. A
  cathode is mounted to the inside of the anodizing
  tank the aluminum acts as an anode, so that
  oxygen ions are released from the electrolyte to
  combine with the aluminum atoms at the surface of
  the part being anodized. Anodizing is, therefore,
  a matter of highly controlled oxidation the
  enhancement of a naturally occurring phenomenon.
  Anodized finishes have made aluminum one of the
  most respected and widely used materials today in
  the production of thousands of consumer,
  commercial and industrial products.

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ANODIZED ALUMINUM

• Protects satellites from the harsh environment of
  space.
• Used in one of the world's tallest buildings -
  the Willis Tower in Chicago, Illinois.
• Provides attractive, minimum-maintenance, highly
  durable exteriors, roofs, curtain walls,
  ceilings, floors, escalators, lobbies and
  staircases in skyscrapers and commercial
  buildings throughout the world.
• Revolutionized the construction of computer
  hardware, exhibit displays for trade shows,
  scientific instruments, and a constantly
  expanding array of home appliances, consumer
  products, and building materials.
• Considered environmentally safe, producing few,
  if any, harmful effects on land, air, or water.