Frequently asked questions - Zinc electroplating

 

What should zinc electroplating customers know?

  1. For the access and flow of the solutions,
  2. For jigging on racks

 

What are the maximum sizes for a product to be electroplated?

Any product that fits the sizes of the tanks: L=1700mm; l=1200mm; h=1100mm.

 

What type of electrolyte do you use?

 

What type of coatings can you deliver?

 

What is the thickness of the coating?

Usually 8-12µm, other thicknesses can be delivered on request.

 

Passivation is the same with chromate coanting?

YES

 

Chromate coating is the same with chrome plating?

NO

Chromate coating = forming a protective film on the surface of the deposited metal

Chrome plating = plating the base metal with a chrome layer by electroplating.

 

What types of passivation can you perform?

The most common are white iridescent blue and iridescent yellow. On request we can perform green and black passivation.

 

The passivation is based on Cr 3+ or Cr6+?

We only perform Cr3+ based passivations.

 

Zinc electroplating is toxic?

No.

 

Passivation is toxic?

No - the one based on Cr3+

Yes - the one based on Cr6+

 

What is the role of passivation?

 

What type of zinc galvanizing do you recommend: electroplating of hot dip galvanizing?

This aspect is specified in the project.

Hot dip galvanizing:

Zinc electroplating: