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<p>[QUOTE=&quot;iPen, post: 2663196, member: 69760&quot;]Will MEK target one-for-one the <i>exact</i> same stuff on a given silver coin that acetone will target? Or, is it that for <i>most</i> residue on coins, acetone and MEK are practically the same, but there are some one-off things that MEK will remove that acetone won&#039;t, and/or vice versa?</p><p><br /></p><p>Also, would I use MEK prior to Xylene? Consequently, would the order below be the technical and comprehensive order of polarity to conserve coins?</p><p><br /></p><p>1. Distilled water</p><p>2. Acetone = MEK (?)</p><p>3. Xylene = Toluene (?)</p><p>4. Acetone = MEK (?; Optional)[/QUOTE]</p><p><br /></p>

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