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<p>[QUOTE=&quot;SuperDave, post: 2299097, member: 1892&quot;]Verdicare is supposed to leave something on the coin, to protect it into the future. I have seen enough Verdicare-treated coins in slabs to know the TPG&#039;s don&#039;t object to whatever Thad is using for ingredients. If alcohol leaves a film on the coin, it&#039;s either because the alcohol or mixed water was insufficiently pure, or whatever it picked up from the coin didn&#039;t rinse off and got redeposited. You should be happy with both substances used in conservation.[/QUOTE]</p><p><br /></p>

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