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<p>[QUOTE=&quot;hotwheelsearl, post: 3929327, member: 75143&quot;]I went to a NLCS (Non-local, since it&#039;s like an hour away).</p><p><br /></p><p>There, I saw the owner using pipe cutters to snip his way through a plastic dime tube that had completely degraded and was bonded to the dimes inside.</p><p><br /></p><p>The mercuries he pulled out were completely covered with blue-green PVC residue. Looks nasty.</p><p><br /></p><p>So I say, &quot;wow, those look pretty rough. But acetone will take that stuff off right quick!&quot;</p><p><br /></p><p>To which he said, &quot;oh no, I never use acetone since it&#039;s too rough and leaves an unnatural surface. <i>Instead, I use vinegar since it&#039;s&nbsp; more gentle on the surface</i>&quot;</p><p><br /></p><p>Whoaaa there, last time I checked acetone was a polar solvent, while vinegar is a weak <i>acid</i>.</p><p><br /></p><p>When I had a Morgan with a little bit of green PVC on it, I posted about it here on CT and the resounding opinion was to soak it in a bit of acetone for a while. After a couple hours, the PVC was completely gone and the original surface was unaffected.</p><p><br /></p><p>Won&#039;t vinegar really damage silver coins?[/QUOTE]</p><p><br /></p>

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