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<p>[QUOTE=&quot;kanga, post: 560541, member: 9270&quot;]The use of acetone is <b>NOT</b> intended for problems like verdigris.</p><p>Verdigris is a product of the coin&#039;s metal and some oxydizing agent.</p><p>&nbsp;</p><p>Acetone is mostly used to remove debris that has attached itself to a coin, <u>but not interacted with the coin</u>.</p><p>Sort of like removing dust from furniture.</p><p>Use it for removing stuff like dirt and oils (including fingerprint oils) BEFORE they interact with the coin&#039;s metal.</p><p>&nbsp;</p><p>And it will help prevent other problems from occurring BEFORE you even know there will be a problem.</p><p>Tiny specks that will turn into carbon spots on copper coins is one such thing.</p><p>BUT IN <b><u>NO</u></b> WAY DO I ADVOCATE TREATING ALL YOUR COINS WITH ACETONE.</p><p>Do it only when your suspect a problem such as sneezing on unprotected coin.</p><p>&nbsp;</p><p>There are exceptions.</p><p>It removes PVC residuals.</p><p>But the problem there is that by the time you see the PVC goo the damage has been done.</p><p>You are just preventing the damage from getting worse.[/QUOTE]</p><p><br /></p>

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