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<p>[QUOTE=&quot;desertgem, post: 1308447, member: 15199&quot;]Oh well, I should know better than jump into such, but</p><p><br /></p><p>1. Any oil other than some special synthetics ( clock oil) could have sulfur compounds, acid producing organics ( over time), that can damage patina and alter the surfaces. I wouldn&#039;t use oils, even though I do have clock oils for another purpose.</p><p><br /></p><p>2. Acetone shouldn&#039;t have to be used beyond a few minutes in each of 3 soaks/rinse. The first should be the longest in case the oil has partially solidified. The oil can get into the &quot;pores/pits of the surface and the acetone can only remove what it contacts. I would not use water or other solution such MS70, coincare, etc. after the acetone as why would you want water to get to the newly exposed surface. Hold the coin at an angle and rinse for a final time with acetone. Hold in fingers until air dry ( few seconds) and store.</p><p><br /></p><p>3. Walmart sells 91% isopropyl alcohol in the pharmacy area, but that is still 9% water, so you still need an acetone rinse.</p><p><br /></p><p>4. Ancients ( cleaning) has a long history, and different expectations by the collectors as moderns. Many people have issues with acetone, and that is a different opinion, and as usual, to each their own&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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