YOU MUST KNOW..Why Does Nickel Plating Turn Black

We tested Nickel plated aluminium with Phosphate Buffer After one day nickel plating turns dark brown black which cannot be removed by water. Dear Sir Im facing tin plating problems.

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For some reason they are turning black.

Why does nickel plating turn black. Tin plating turns black after a few months November 5 2012-- this entry appended to this thread by editor in lieu of spawning a duplicative thread. We do bright acid tin plating on copper lugs. Electroless Nickel Plating on Aluminium turns black with Phosphate buffer.

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