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<p>[QUOTE=&quot;imrich, post: 2552046, member: 22331&quot;]Thanks to you and [USER=17261]@BadThad[/USER] for the suggestions of Ultrasonics and Tetrahydrofuran for initiating a solution to resolve my extruded plastic removal problem from coin crevices.</p><p><br /></p><p>After unsuccessfully implementing utilization of Acetone which has a vapor pressure up to 30+ times greater Benzene, Ethanol, Toluene, and Tetrahydrofuran, with a LEL of 2.5%, I recognized that [USER=17261]@BadThad[/USER] solvent suggestion, and a modified Ultrasonic apparatus I had developed in the past, would resolve the safe stripping of plastic extruded residue/film from my coin.</p><p><br /></p><p>The aforementioned device was designed to remove the residue left from the insidious/destructive carburated fuel &quot;Ethanol&quot;. The hard residue plugs the minute labyrinthian orifices in our snowmobile/cycle racing engine carburators, and&nbsp; couldn&#039;t be removed chemically. Neither chemicals or commercial ultrasonic devices alone would remove the residue/film, but the apparatus worked beautifully, saving many hours of intricate labor.</p><p><br /></p><p>Thanks Guys!![/QUOTE]</p><p><br /></p>

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