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<p>[QUOTE=&quot;chascat, post: 2350070, member: 76792&quot;]Dipping has some risk factors.&nbsp; I don,t&nbsp; dip coppers because it usually leaves a pinkish tone on M S coins.&nbsp; I have dipped many proof coppers with mostly good luck, however sometimes there is a bad reaction.&nbsp; I dilute the solution and have better luck.&nbsp; Modern zinc coppers don,t like to be dipped.&nbsp; Silver coins react well without too many problems.&nbsp; Proof silver is the easiest to restore.&nbsp; Many older silver proofs have environmental issues due to improper mint packaging.&nbsp; Brown Ikes are a great example of bad packaging.&nbsp; I always dip the Brown Ikes and 70,s red case proof sets.&nbsp; These plastic cases are &quot;ticking time bombs&quot; and most coins in these cases are or will be ruined if left in them!&nbsp; I have about a 90% success rate dipping these.</p><p><br /></p><p>I use a solution of half clear ammonia and half distilled water.&nbsp; Use tongs or medical gloves,&nbsp; only touch the edges, dip the coin several times [swish it in the solution], rinse in hot running water [repeat if necessary], rinse again in distilled water,[tap water is very polluted] dry with a hair dryer[never use cloth and never touch the surface with anything].&nbsp; Experiment with ugly Ikes.&nbsp; I would submit more valuable coins for professional restoration.</p><p><br /></p><p>Chascat[/QUOTE]</p><p><br /></p>

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