Phosphating is a chemical process that is being used for treating the surface of the steel, where the soluble metal-phosphate layers can be formed on the base material. These porous are also absorbent and suitable as a conversion layer for subsequent coating, for example with powder with no further treatment. They are also ideal as temporary corrosion protection if subsequently treated with oil or passivated within a timeframe.


  • Temporary corrosion protection for steel, which is to be stored for a limited period before further treatment
  • Excellent for adhesion and subsequent surface coating
  • Improves lubrications when cold forming steel through a variety of processes including extrusion and drawing

William Rowland Metals finishing offer both Manganese and Zinc Phosphating to a variety of industries.



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