Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

NON-WIPE COPPER BLACKENING SYSTEM

2001

I recently read a response by Ray Delorey), letter 1198 regarding chemically blackening copper. Ray recommended a 1% -- room-temperature dip of "zinc purifier" that is used in a "cyanide zinc process" as a non-wipe system for this blackening process. I would appreciate help in locating a source(s) for this "zinc purifier".

Thanks much,

RON RITSCHER
- Springfield, Missouri, USA

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

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: