Zinc Electroplating

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I sincerely hope so, Frank

The inclusion of Galvani's name relates to the mode of protection provided by the Zinc, not to the method of its application.

MichaelG.

Having just reviewed my response to Frank, I think perhaps I should explain my thinking a little further:

There will invevitably be "an exception that proves the rule" but; in general Zinc Electroplating produces the thin layer commonly referred to as BZP, whereas Hot Dip Galvanizing produces the thick layer that we see on pipes, railings good buckets, etc.

BZP is too thin to provide much by way of Galvanic protection, and is really only a decorative finish that protects components on the shelf, or [at best] against light handling.

It is presumably possible to electroplate a thick layer but, in my limited experience, anything that requires serious environmental protection would be Hot Dip Galvanized.

MichaelG.

Thanks for the explanations Michael, one learns something new every day...

Having perused several flavors of Wikipedia, it really seems tat in the English speaking world galvanizing is used for the hot dip process. But I stay with my opinion that in my neck of the woods this is not the case.

Please see here:

Galvanotechnik

Pictures

I rest my case now.

Regards, Frank

Until a few years ago, if you wanted a fine finish that resisted corrosion you went for cadmium, what happens now?

Ian S C

Ian, it would be BZP (bright zinc plate) and passivate (clear or yellow to look like cadmium plate) and the zinc is electro plate if it is big and complex shape or mechanical if it is suitable - the mechanical being the preference for stressed small parts.

Mark

Also, black zinc has become a popular in the auto industry for decorative finish and the cold alternative to sheradise finish is phosphate (dry or with oil) which can also be done on a small scale if you can get the chemistry.

Edited By Mark C on 21/05/2014 14:58:41