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<p>[QUOTE=&quot;-jeffB, post: 4124611, member: 27832&quot;]<b>NO.</b></p><p><b><br /></b></p><p><b>Rubbing a coin is bad.</b> If you brush it super-lightly with a delicate brush, you probably won&#039;t <i>see</i> any abrasions with your naked eye, but that&#039;s no guarantee that you aren&#039;t creating them. You&#039;re also dragging dirt across the face of the coin, which is even more likely to leave abrasions.</p><p><br /></p><p>As [USER=33176]@Kentucky[/USER] and [USER=74863]@Collecting Nut[/USER] said, nail polish remover often isn&#039;t pure acetone. It rarely specifies what the additives are, and lots of additives can cause discoloration or even corrosion on coins. It&#039;s much wiser (and much cheaper) to get pure acetone.</p><p><br /></p><p>I respect your experience with metal cleaning, but there are different rules, constraints and goals when you&#039;re cleaning contacts as opposed to coin surfaces. Be cautious when generalizing from one to the other.[/QUOTE]</p><p><br /></p>

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