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Metal finishing Q&As since 1989
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Sulphamate Nickel Grain Refiner
Is there a grain refiner for nickel sulfamate solution?
Veronica Dewis- FL,USA
2001
Sure, Veronica ... although the suppliers tend to call the additive for sulphamate nickel "hardener" rather than grain refiner. See if that term gets you rolling. Good luck.
![Ted Mooney, finishing.com](../portraits/ted_mooney_beach.jpg)
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2001
Another way to reduce grain size is to use a pulse plating or periodic reverse type of rectifier.
![Pat Mentone](../portraits/pat_mentone.jpg)
Pat Mentone
St Paul, Minnesota
2001
Hi, there is a Pulse Reverse NickelChloride which gives finer grains than Sulphamate Nickel. Bath composition is cheaper than Sulphamate, no additives needed.
Lars B. Andersen- Denmark
2001
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