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<p>[QUOTE=&quot;GDJMSP, post: 2338531, member: 112&quot;]MS70 is a good product for what it is designed to do. It works especially well on modern clad coins, including some hazy Proofs. Many dealers and collectors use it on moderns when they plan on sending them in for grading. That is after all&nbsp; kind of the origin of the name for the product. </p><p><br /></p><p>And yes, the TPGs are known to use it themselves when they think a submitted coin may benefit from its use. Of course the TPGs have even publicly admitted to using coin dip on submitted coins if they think the coin could benefit. And they do this without the owner of the coin granting his/her permission for them to do it, or the owner even having any knowledge of it at all.</p><p><br /></p><p>But it (MS70) has a nasty reputation for turning copper blue. So most recommend that it not be used on copper.[/QUOTE]</p><p><br /></p>

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