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Phosphate Coatings 

Phosphate coatings are “conversion coatings.” Unlike plating processes, in which a layer of metal is deposited on the surface of the substrate, during the phosphating process the substrate participates in the reaction and becomes a component of the coating. 

What does Phosphating mean?
 

Phosphating is the process of converting a steel surface to iron phosphate. This is mostly used as a pretreatment method in conjunction with another method of corrosion protection. A layer of phosphate coating typically includes iron, zinc or manganese crystals.

Phosphating is also known as phophatizing and phosphate conversion coating.

Phosphate Coating Processes
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  • Cleaning of Surface

  • Rinsing

  • Surface Activation

  • Phosphating

  • Rinsing

  • Drying

  • Ferrocoat (Optional)

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