Zinc plating

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How the Zinc plating process takes place

In the electrolytic zinc plating process, the material to be treated is duly degreased and prepared before being immersed in an electrolytic solution, acid or alkaline, containing zinc salts. Finally, a current is created between the workpiece and the solution, which causes metallic zinc to be deposited on the surface of the workpiece.

After zinc plating, the treated part enters a passivation bath which creates a thin protective film which, once dried, increases resistance to atmospheric corrosion and improves appearance.

An additional post-passivation sealer can be applied to increase corrosion resistance and smoothness. The appearance is metallic and the color depends on the passivation applied after the zinc layer.

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Different types of zinc plating

The treatment can take place with a frame cycle or a rotobarrel cycle in the case of small parts: the assessment is generally made by the customer based on technical and aesthetic requirements. The type of passivation required is also assessed.

Cold electrolytic zinc plating provides micrometric control of the coating, a good aesthetic result and an excellent price/quality ratio. A further advantage of the treatment is its reversibility: it can be removed and reapplied without compromising any of the characteristics of the substrate.

The materials to be treated can range from any ferrous alloy to aluminum or brass, making the coating affordable for any sector involving the use of metals. Carpentry, packaging, hydraulics and automotive are just a few examples of sectors that make extensive use of it.

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Galvanic treatments | Zinco Nichel
Zinco Nichel

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Galvanic treatments | ZnBnC3®
ZnBnC3®

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Galvanic treatments | ZnChR3®
ZnChR3®

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Galvanic treatments | ZnPlus®
ZnPlus®

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Choose zinc plating from Gaser Group

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