Nickel plating turning blue?
Well, I just got an email from a customer of mine who reports that one of the parts I had nickel plated is beginning to turn a gunmetal blue.
The plated material is nickel-silver. After plating, the parts was breifly tumbled in a rock tumbler to add some wear and light scuffing for a lightly aged look.
I have other parts here that were plated at the same time as his parts, and they are not turning blue.
Part is being used on a guitar. Could the sweat or skin contact from a player be causing this blueness?
I've asked for some pictures...if I get some, I'll post them.
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