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topic 56553

Composition of 'Brightener' for Acid Zinc Plating bath

A discussion started in 2011 & continuing through 2017

January 16, 2011

Q. Our's is a small electro galvanizing unit for mild steel wires. And we are having a continuous line wire galvanising plant for 4.0 mm to 2.0 mm dia wires. Some times we are ordered to finish with mirror bright zinc colour. The branded 'Zinc brightener' does not suit our requirements and hence we require to make our own composition. We need help for the names of chemicals and its composition.

Ranjit Singh
- Calcutta, West Bengal, INDIA

January 18, 2011

A. Hi, Ranjit. There are a dozen or more brands of bright zinc plating solution, so if you are dissatisfied with what you are using, there are many alternatives. Unfortunately, I don't think anyone will be able to refer you to published literature on the subject; for the most part the composition of these brighteners is trade secret so we can't post any hints other than references to published information. Further, sometimes these brighteners are not mixtures, but organic compounds synthesized from precursors, which you would not be able to mix from generic materials. Good luck.


Ted Mooney,
Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

June 18, 2017 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. Hi to all,
I'm working on acid zinc baths. What do you recommend for making parts more bright?
I mean what chemical materials should be added and in what ratios?
Best regards,

Phahad Hashim
- Dubai, UAE

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