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Copper ring just keeps tarnishing

Q. Why is it when I polish my copper ring can I apply the solution again and still remove tarnish even though it is shiny and has no visible signs of tarnish. Also, what is the best way, if any, to prevent or slow this process.

Thank you,

Travis Woodruff
hobbyist - Antioch, Tennessee, USA
2003

"The Chemistry of Benzotriazole Derivatives"

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A. If the tarnish was recently removed it will be thin, but it will not be non-existent. Some polishes probably do a better job of leaving an anti-tarnish on the surface than other polishes do. Anything helps, but benzotriazole ⇦ on eBay or Amazon [affil link] is an accepted tarnish fighter for copper.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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