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<p>[QUOTE=&quot;ldhair, post: 4350191, member: 11540&quot;]Yes. That&#039;s what it&#039;s all about.</p><p>Whatever the solvent removed from the coin is still floating around in the solvent. The next bath in fresh solvent will reduce the impurities that can re-deposit. I always do at least three baths.</p><p>&nbsp;</p><p>Just for fun, try this.</p><p>With each bath, put a drop of the used solvent on a piece of clean glass or mirror and let it dry. You can actually track the progress you are making with removing the impurities. It&#039;s not a bad idea to put a drop of the fresh solvent you are using on a piece of clean glass from the start. It&#039;s nice to know that the solvent you are using is not already a problem.[/QUOTE]</p><p><br /></p>

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