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<p>[QUOTE=&quot;desertgem, post: 815275, member: 15199&quot;]I agree with Thad &amp; RLM also on not rinsing with any kind of water nor forced drying after the acetone. I actually final rinse the coin straight from the acetone container ( I use a small beaker so I can hit the coin with little loss). Excess could drain into a first rinse container if one didn&#039;t want to waste.&nbsp; </p><p><br /></p><p>Although some say metal could be affected, I have never seen it, nor expect from its chemistry myself, that acetone can affect the metal under normal conditions. However, I have been surprised and disappointed a few times when after the acetone had removed some organic material, that the area under it was much different color from the rest of the coin. Most were pre- 1934&nbsp; coins and some people used various oils and waxes&nbsp; to cover defects, which you then removed. So yes, the use of acetone is not a &quot;no - brainer&quot; decision. Some thought must be put into the question of what might happen/ Except in the case of PVC activity, then I feel one must take the chance, otherwise if the coin looks great, leave it alone. If acetone affects toning, it was artificial to start with IMO.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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