The Zinc Phosphating process is a chemical conversion of the surface substrate of the steel that, through a weak acid attack, produces a light layer of phosphates on the surface itself. It is applied in a drum system (drum) and frame (static) with medium thicknesses from 02 to 8 microns achieving an aesthetic appearance that can vary from gray to black.

 

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Automotive industry

Electrical industry

Mechanical engineering industry

 

 

 

 

From 05 to 48 Hours to Red Corrosion or base metal, depending on the phosphate layer and protection oil applied