"Based on online discussions & resources, the most comprehensive & highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, & more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
-----
Problem of Brass finish burning off during sintering furnacing
Q. Good Afternoon,
My company is trying a new process, looking to get a shiny finish. We are using brass over the top of nickel on a ring, then furnacing the ring at 1550 °F in a reducing atmosphere. We start up 100% hydrogen, then switch to nitrogen for the cooling process. We are having all the brass burn off the part, and are left with a shiny appearance that looks almost like chrome. I am attempting to figure out exactly what is happening, and why my nice brass finish is disappearing.
Thank you,
Matt
Matthew Casey
- Akron Ohio
September 8, 2020

Nadcap Chemical Processing Auditor - PRI, traveling
Process Engineer / Chemist - Denver Metal Finishing, Colorado
Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: