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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Copper ring just keeps tarnishing

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

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 ⇦ this on eBay or Amazon [affil links] is an accepted tarnish fighter for copper.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003

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