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topic 12430

Nickel sulfamate blistering problem

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"The Sulfamate Nickel How-To Guide"

by David Crotty, PhD
& Robert Probert

Hot Off the Press -- published Oct. 2018
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Q. In the past two years, our production line is in normal state. However, when we use new confected bath with Ni(NH2SO3)2 which has been stored for two years . We found blistering on the Nickel plating surface.What cause the problem?

Wang Zhanhua
- Beijing, China


A. What is the analysis of the bath now. Metal, pH, halides, boric acid.

pooky tom pullizi signature
Tom Pullizzi
Falls Township, Pennsylvania


A. Have you carbon treated your new solution? In my experience it is quite common for the nickel sulphamate to contain contaminants before you start. If you have not carbon treated then I strongly recommend that you do, followed by a dummy out for a few hours.

Brian Terry
helicopters - Yeovil, Somerset, England

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