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<p>[QUOTE=&quot;YankeeDime, post: 7596186, member: 119919&quot;]Acetone shouldn&#039;t be used on copper where natural light, water, water vapor or even high humidity is present either. When copper and acetone come into contact when there is moisture and natural lighting they react photochemically forming acetic acid. The acetic acid then goes on to further react with copper forming copper acetate. Isopropanol has no such reaction with copper and is recommended as an organic degreaser for alloys with high copper concentration. Acetone is however completely safe to use on silver, gold and platinum.</p><p><br /></p><p>And my wife said I&#039;d never use my lab degrees in real world situations, lol[/QUOTE]</p><p><br /></p>

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