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Old 01-04-2008, 09:14 AM
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mete mete is offline
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Join Date: Sep 2004
Location: NY State
Posts: 777
"changing alloy contents" Yes that could be the reason if there have been new reactions. Remember that various metals can cause various reactions .Even stainless steel can cause things like allergic reactions apparently from the nickel. While gold is not likely to be a problem gold alloys [ 24 ,18,14 carat] contains things like Zn or Cu that may react. Individual biochemistry can be very reactive to metals as I've known a few who will instantly rust steel when they touch it ! Women can have problems once a month also. You might ask a customer first otherwise if it bothers him he'll have to give it up !
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