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Roughness / finish quality of pre-plated versus electroplated

Using plated Steel for contacts I am interested to know the advantages or disadvantages in terms of roughness of the resulting galvanised steel in case it is pre plated ( 15-20 µm ) and in case it is post plated Electrogalvanised ( 3-5µm)

Joel Rispal
Sales person - PARIS, France
2007

I don't understand your application, Joel, as I'm unfamilar with using zinc plated steel as a contact surface. But, in general, the thicker the electroplating is, the rougher it is. Roughness is not usually a factor which would indicate whether pre-plate or post-plate should be used.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2007

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