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Standing Liberty Quarter in Acetone Experiment
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<p>[QUOTE="Oldhoopster, post: 6575024, member: 84179"]24 hrs should be plenty of time to see of the residue is removed or at least starts to soften. If nothing happens by then, it's unlikely longer soaks have any effect. Make sure you keep the jar covered and away from hot areas or flames. If acetone doesn't work, xylene might.</p><p><br /></p><p>I believe the conservator was worried about the possibility that the surface under the residue may have been damaged by the gunk and he didn't want to be responsible if the coin ends up looking worse.[/QUOTE]</p><p><br /></p>
[QUOTE="Oldhoopster, post: 6575024, member: 84179"]24 hrs should be plenty of time to see of the residue is removed or at least starts to soften. If nothing happens by then, it's unlikely longer soaks have any effect. Make sure you keep the jar covered and away from hot areas or flames. If acetone doesn't work, xylene might. I believe the conservator was worried about the possibility that the surface under the residue may have been damaged by the gunk and he didn't want to be responsible if the coin ends up looking worse.[/QUOTE]
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