Letter 39085

Electroplating, electrocoating, electrodipping [Hong Kong] 

January 17, 2006

Can anyone tell me what is the difference between electroplating, electrocoating and electrodipping?
Which gives a better surface finish and better resistance to wear?

Mimi
an engineer in China - Hong Kong

Electroplating means applying a metallic coating such as gold, nickel, or zinc. Electrocoating means applying an organic topping (paint) by the process of electrophoresis, such as is done in the priming of automobiles. Electrodipping has no established meaning as far as I know.

I would expect electroplated metals to have more wear resistance than electrocoated organic finishes.

 
Ted Mooney, P.E.
finishing.com Inc. - Brick, NJ

Hi,

Difference between Electrophoretic Deposition Method and Plating. Is there a difference between EDM and Plating? I have looked it up in the internet but was unable to find out the difference. If i am not wrong, both processes uses the same principles, however Plating is mainly for deposition of metals on metal, whereas EDM encompasses a wider range of depositing materials?

Are there resources out there that i can read this up on?

Thanks,

Sherwin Chia
Mechanical Engineer for Mobile Phone Manufacturer - Singapore

I would suggest that you not use the acronym 'EDM' since this is widely used to mean Electrolytic Discharge Machining. Yes, electroplating refers to the deposition of metals whereas electrophoresis is used to deposit organic materials like paint.

Ted Mooney, P.E.
finishing.com Inc. - Brick, NJ

I want to answer or follow-up on this subject publicly (in non-commercial fashion).

 

My company is a supporting advertiser at finishing.com and we want the contact information to reach the inquirer privately.

 

I want to post a new question or inquiry of my own on a different subject.