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<p>[QUOTE=&quot;Fish, post: 490734, member: 6034&quot;]If you don&#039;t rinse afterwards there could be some acetone left on the coin, which won&#039;t react with it BUT will react with anything else it touches.&nbsp; Especially if you want to, say, put it in a plastic flip.&nbsp; The acetone will eat it.</p><p><br /></p><p>If what you want to remove is organic (not tape residue or the like) you can also use xylol.&nbsp; It&#039;s even more caustic than acetone and is actually quite poisonous, but it will remove a lot of stuff.&nbsp; I&#039;ve used both acetone and xylol on silver and copper to no ill effect.&nbsp; Xylol can be purchased at a hardware store, look in with the paint thinners.[/QUOTE]</p><p><br /></p>

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