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topic 18891

Watts vs Sulphamate Nickel Plating


Can someone please provide a comparison of Watts versus Sulphamate nickel plating. Which is better and why? I've heard that Sulphamate plating is less susceptible to flaking. Is this true? Much appreciated.

Carl Brown
- Toronto, Canada


Hi, Carl. That one was already asked and answered if only we can find it :-)
... ah, there it is, Ltr. No. 18397.

Let us know if there are additional quetions.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey
Striving to live "Aloha"


Sulfamate Nickel is used to gain lower deposit stress. Normally it can be held around 3000 to 5000 psi tensile, but with additives can be made compressive low stress. With impurity abuse it goes up past 100000 and on towards 150000.

Come back to us with more details, what kinds of parts, what functional requirements, ductility, stress, hardness, etc...

robert probert
Robert H Probert
Robert H Probert Technical Services
supporting advertiser
Garner, North Carolina
Editor's note: Mr. Probert is the author of Aluminum How-To / Aluminio El Como
and co-author of The Sulfamate Nickel How-To Guide

March 21, 2011 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Hi there!

I work in hydraulic and I have a cylinder rod that I need to be Sulfamate Nickel Chrome plated. I received a proposition from a shop that does nickel-chrome plating from a Watts bath.

Are these process similar? What are the main differences between a sulfamate bath and a Watts bath?

Thank you!

Nicolas Arnaud
Hydraulic cylinder - Ottawa, Canada

March 25, 2011

Hi, Nicolas. We appended your inquiry to a thread that may answer it for you. My suspicion is that this application does not constitute a rigorous test of the advantages of one plating over the other, and that the Watts nickel will be fine. Obviously this is an opinion from a distance, and I can't attest to the abilities of an unknown plating shop. Good luck.


Ted Mooney,
Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey
Striving to live "Aloha"

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