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Replenishment of a Hard Chrome Solution

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We are doing hard chrome on Bikes components. We were purchasing chemicals for our two tanks from a local supplier but due to some unavoidable reasons they are out of stock. Now we need to Reinforce our Solution. Some Technical staffer at our supplier had told us that they were manufacturing the Reinforcement Salt from Chromic Acid and Reinforcement Solution from Methane Disulphonic acid. Kindly let me know How it is Possible using Chromic Acid & Methane Disulphonic acid and will it requires any other chemicals also?

"Chromium Plating"
by Weiner & Walmsley

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"Hard Chromium Plating"
by Robert K. Guffie

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Hi Imran. Business is done a little differently in Pakistan than in the USA. Here a technical staffer at a supplier who told a customer how to make the company's product might be charged with theft of trade secrets & intellectual property :-)

Easiest alternative is to revert to a simple conventional (Sergeant's) chromium bath of 100 parts chromic acid to one part of sulfuric acid because this is clearly in the public domain. An alternative is to find a supplier who has the stock for what you want. Trying to independently reinvent a proprietary high efficiency plating bath presents many problems, especially if your lab facilities are limited as most plating shops are. But good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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