Anodizing is a proven coating technique for aluminum.
Through an electrochemical process the material's surface is transformed into an oxide layer. Contrary to other methods, this layer is built from the base material itself. No foreign material is involved.

Prior to the last working step, where the oxide layer is compressed, it can be dyed in colors from light brown to black. The characteristic structure of the metal surface remains though.

Main advantages are:

• Corrosion resistance
• Decorative finish
• High coating toughness

Get further informationen at:
OTN, Neumünster

See also:

• Hot dip galvanizing
• Zinc & color coating
• Powder coating
• Electro plating
• Phosphate coating
• High-temperature galvanizing
• Knowledge database