Letter 21041

Green chromating [France]  

+++

How to get green chromating in passivation of zinc electroplated on steel, and what about the chemical composition and the process ? It's a part of my research on electroplating on different metals, in this case, it's about protecting steel.

AMIR
- France

The good stuff is very proprietary, IE: you have to buy it from a reputable company. You may find a few very old references in the old trade magazines. Many companies no longer patent their products as it provides a fast track for others to reverse engineer it. They just keep it a secret and the rip offs also keep it a secret.

James Watts
- FL

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

 

I 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.