optimum solutions to water management
Products Finishing logo
The Voice of the Finishing Industry since 1936
SUBSCRIBE
Published

Black Oxide and Cadmium Plating

Is it possible to put black oxide over cadmium plate? Will the cadmium plate be degraded by the black oxide solution? Will the black oxide solution be degraded by exposure to cadmium?

Arthur S. Kushner

Consultant

Share

Read Next

 Q. We have received a request to apply black oxide to a part that also requires cadmium plating. The parts have already been cadmium plated. Is it possible to put black oxide over cadmium plate? Will the cadmium plate be degraded by the black oxide solution? Will the black oxide solution be degraded by exposure to cadmium? P.G.

 

 
A. This is an interesting series of questions. As you might guess, this is a nice way of saying I really don’t have answers to your questions! As I understand it, the parts are already cadmium plated and certain areas must have a black oxide finish applied. It is not clear from your e-mail whether the parts required the black oxide for corrosion protection or a decorative finish only. Nor do you state whether your customer requires a “classical” black oxide solution, which typically is applied at high temperature. I am not aware of any masking materials that will stand up to the temperatures of a black oxide solution. There are materials available that will give you a black finish essentially at room temperature or above, but the finish does not give you the same amount of corrosion protection as the classical black oxide finish.
 
Since I do not have answers to your questions, I am asking my readers to comment. If you have suggestions as to how this problem might be solved, I would appreciate hearing from you.
 

RELATED CONTENT

KCH Engineered Systems

Resources

Calculating the Cost of Powder Coating

Top Reasons to Switch to a Better Cleaning Fluid

See the Latest Issue of Products Finishing Magazine

Improving Wastewater Management Efficiency

A Chromium Plating Overview

Pretreatment for Painting
Subscribe to Products Finishing Magazine

Subscribe to Products Finishing Magazine
Browse PF By Topic

Browse PF by Topic

In Case You Missed It

Regulatory Changes Drive Cleaning Companies' Collaboration

Regulatory Changes Drive Cleaning Companies' Collaboration

Bill Rickenbaugh Joins Carlisle as Account Manager

Bill Rickenbaugh Joins Carlisle as Account Manager

In Memory of Ron Saas

In Memory of Ron Saas

10 Anodizing Best Practices

10 Anodizing Best Practices

Cheers to Another National Surface Finishing Day

Cheers to Another National Surface Finishing Day

Previous Next