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<p>[QUOTE=&quot;Publius2, post: 4655332, member: 105571&quot;]Commercial grade acetone such as available at Lowes/Home Depot/ACE/paint stores is not 100% pure acetIone, it has a small, less than 1% I think, of other components including water.&nbsp; For pure acetone, you would need to find a laboratory supply house.</p><p><br /></p><p>But the hardware store stuff is perfectly fine for our purposes.&nbsp; The key is to understand that once you use it, it is contaminated.&nbsp; So your final rinse should be with unused acetone.[/QUOTE]</p><p><br /></p>

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