I had some oxygen free copper and fine silver parts that a friend’s local company deemed scrap. While I waited for clear nail polish (a masking method) to dry on my niobium bracelets, I decided to electrolytically anodize the oxygen free copper and silver parts. I kept part of the fine silver piece out of the process so I could compare the finishes to the raw material.
The beautiful blue oxide layers that developed on both metals was easily wiped off with a paper towel.
