For years now I’ve been using L&R ammoniated cleaner in a plastic
tub in my ultrasonic. Sometimes pretty concentrated. I use the tub so
it can be sealed and not fumigate the shop.
I pulled a couple of yellow gold rings out and good gosh they were
white. Louped them and it ‘looks’ like a silver coating. Only other
things in the tank were platinum rings and a copper wire, although
previously I may have cleaned some silver articles. I can say there
is not a direct electrical connection between items and the main
Anyone ever experience this?