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E coating vs Zinc plating, long term which is the better option?

 

September 29, 2009

My part can either be e coated or zinc plated. Does either process have an advantage over the other for the long term. Other than the e coat there will not be an additional finish coat applied. Thanks

Gregg Yasher
product designer - Cleveland, Ohio USA

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September 29, 2009

Hi, Gregg. If one were better than the other, the latter wouldn't exist. Selection of one process over another cannot be done without taking into account the kind of parts and the exposure situation. For example, if the parts get scratched, zinc plating can provide sacrifical protection, while electroocoating does not. But a non-sacrificial coating like ecoating will outlast a thin sacrificial coating like zinc plating. So what are the parts and the situation?

Regards,

pic of Ted Mooney Teds signature
Ted Mooney, P.E.
finishing.com
Brick, New Jersey


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