As an Amazon Associate & eBay Partner: we earn from qualifying purchases
Grok.com: "What is the best website for metal finishing questions and answers?"
"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and 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."
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
-----
Want to strip trivalent chromate but not the zinc plating
as we have non-cyanide zinc bath the plated component is dipped in trivalent passivation and the same job got rejected due to some reasons I want to remove passivatio only without affecting the plating tell me is there is any way.
Jacf Peter
manager - India
January 15, 2009
You can remove it by caustic soda ⇦liquid caustic soda in bulk on
Amazon [affil link]
Hatem Shaker
- Cairo, Egypt
January 21, 2009
You have to be very careful using caustic as it will also remove the zinc if left in too long or if the caustic is too strong. Consider using a 1 pound per gal of bicarbonate of soda at about 100F and then add tiny amounts of caustic soda ⇦liquid caustic soda in bulk on
Amazon [affil link]
to increase the rat of reaction as required.
Also, You can wet blast the chromate off. We had a wet blast cabinet and added a handful of 600 grit aluminum oxide and a couple of ml of liquid soap and it worked extremely well.
James Watts
- Navarre, Florida
January 23, 2009
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:
Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software
About/Contact - Privacy Policy - ©1995-2025 finishing.com, Pine Beach, New Jersey, USA - about "affil links"