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<p>[QUOTE=&quot;GDJMSP, post: 173803, member: 112&quot;]I repsect the owner of CopperCoins.com a great deal, but in this instance I believe he is making a mistake in offering that advice. A cotton swab, a Q-tip, a cotton ball, a cotton cloth - every one of them will hairline a coin. And the worst part is it&#039;s not necessary. Just soaking the coin in acetone will remove the PVC residue <u>without</u> risking hairlines. So why do it ?</p><p><br /></p><p>Now, I do agree that any coin, even a copper coin, that is contaminated with PVC residue should have that residue removed in order to prevent further damage. But - acetone can cause copper to turn all sorts of weird colors. It may not happen right away, and it may not happen every single time. But it <u>does</u> happen often enough that I wouldn&#039;t want to risk it if it were my coin. Unless of course I was trying to prevent further damage by doing so.[/QUOTE]</p><p><br /></p>

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