| Search our quarter-million Q&As |
Home of the finishing HOTLINE since 1989
-----Zinc Plating over Black Oxide
We have some small parts that have been black oxided. Our customer just changed the spec to yellow zinc plating 5-15 microns. Is it possible to zinc plate on top of black oxide?
Thanks
VP - Engineering - Indianapolis, Indiana, USA
September 20, 2011
No, you can't plate "over" black oxide, but the pretreatment process for zinc plating will easily remove the black oxide and the parts can be zinc plated.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
First of two simultaneous responses -- September 21, 2011
Second of two simultaneous responses -- September 22, 2011
Dear Andy Binford,
I think instead of Black oxide, You need to do the Zinc plating of 5-15 microns.
I don't think you need to do the Zinc plating on Black oxide.
Please re-conform with your customer.
- Salem, TamilNadu, India
Sorry! Finishing.com is temporarily Read-Only.
Ted Mooney is retiring but I have several offers to take it over.
We're working hard to make sure we find it the best new home.
