"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."
-----
Changing yellow passivation to new white trivalent dip
2007
Dear sir,
TILL NOW I AM DOING CYANIDE ZINC PLATING AND USING HEX. YELLOW PASS FOR MY AUTO PARTS CUSTOMER , BUT NOW THEY ARE ASKING FOR TRIV. WHITE COLOR . CREAM SHADE FOR THE AUTO PARTS.
CAN ANYBODY CAN GUIDE ME THE PROCESS AND THE CHEMICAL TO BE USED?
thanks,
TUSHAR RAJ
PROP. - MUMBAI, MAH, INDIA
Dear Tushar,
You being in Mumbai, the land of almost all plating process chemicals suppliers, should get the help from any of them.
first ask your present supplier. if he is not of much help,then just look around as trivalent passivations are the 'in thing'.
regards
T.K. Mohan
plating process supplier - Mumbai, India
2007
adv.

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: