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topic 4184

Very Thick electroless nickel plating


I need to plate a thickness of 40 mils with electroless nickel, I'm looking for a company that could do that or that sells the chemicals to do it.

Thanks in advance

Robin Francois
- Boston, Massachusetts

First of two simultaneous responses--


40 mills is extremely difficult to do. The bath has to be tweeked to no pit and not passivate. This calls for it to be plated extremely slowly and would very nearly have to be a zero or low internal stress or you will have problems.

It will be expensive and you can expect it to be stripped several time or be blind dumb lucky to get it on the first try. I have heard, but never seen 10 mills, but never 40.

What is wrong with something like a sulfamate nickel heavy plate, machined and an EN top coat of say 3 mills.

James Watts
- Navarre, Florida

Second of two simultaneous responses-- (2000)

Sirius Technology in Oriskany, NY is a manufacturer of EN chemistries. Their developmental people can help you with this application.

Megan Pellenz
- Syracuse, New York


If it is not feasible to electroplate economically, try thermal spray technique. There are job-shops providing the service.

Mandar Sunthankar
- Fort Collins, Colorado

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