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Conversion coating



Conversion coatings are coatings for metals where the part surface is converted into the coating with a chemical or electro-chemical process. Examples include chromate conversion coatings, phosphate conversion coatings, bluing, oxide coatings on steel, and anodizing. They are used for corrosion protection, increased surface hardness, to add decorative color and as paint primers. Conversion coatings may be very thin, on the order of 0.00001". Thick coatings, up to 0.002", are usually built up on aluminium alloys, either by anodizing or chromate conversion.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Conversion_coating". A list of authors is available in Wikipedia.
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