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<p>[QUOTE=&quot;Oldhoopster, post: 3576729, member: 84179&quot;]Acetone is your friend for removing PVC residue and many organic deposits.&nbsp; It won&#039;t harm the coin since it doesn&#039;t act on metallic reaction products that make up toning.&nbsp; </p><p><br /></p><p>It is a chemical and flammable, so you want to follow safe handling methods, but there are a couple threads in the archives outlining safe procedures. It will evaporate quickly in open containers and don&#039;t use nail polish remover. It has chemicals besides acetone.&nbsp; FInally, remember acetone is a solvent so you don&#039;t want to use plastic jars, etc. (a few plastics are ok but it&#039;s easiest just to stay from them). Oh, and don&#039;t spill it on countertops. You might get an unwanted reaction.&nbsp; </p><p><br /></p><p>There are enough chemistry guys and others with acetone experience that can answer any questions[/QUOTE]</p><p><br /></p>

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