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<p>[QUOTE=&quot;borgovan, post: 600944, member: 13016&quot;]Before I get started, let me say that I don&#039;t recommend this for anyone except this particular individual. We&#039;re talking about coins worth 1-3 cents each here, and given that they&#039;ll be encased in epoxy, we&#039;re not going to lower their value any further. </p><p>&nbsp;</p><p>That being said...</p><p>&nbsp;</p><p>If they&#039;re doing something like this, I&#039;m guessing cost isn&#039;t an issue.</p><p>&nbsp;</p><p>I would think that a couple of gallons of copper cleaner would do the trick for 7,000 coins. You can buy it in bulk. I know Brent Krueger sells both e-Z-est and SpeeDip by the gallon: </p><p>&nbsp;</p><p><a href="http://www.brent-krueger.com/cleaners.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.brent-krueger.com/cleaners.html" rel="nofollow">http://www.brent-krueger.com/cleaners.html</a></p><p>&nbsp;</p><p>You&#039;re going to want to make sure to use this outside, especially with that volume of coins. I would keep them out of the sunlight after they&#039;ve been dipped. The best way to do it is probably in small batches. The dip will take the tarnish off in 1-2 seconds, and if you leave the coins in longer than that, they will be eaten away to nothingness in pretty short order. As you remove each batch from the dip, rinse the coins very thoroughly with fresh water (preferably distilled, if you don&#039;t mind spending the extra cash.) Then, keep them away from air, as they will darken again rather quickly. [After they&#039;ve been thoroughly rinsed, you might even want to have a second container full of fresh water that you can store them in -- that way they won&#039;t come into contact with the air. Then, you can dry them quickly immediately before laying them down in the floor.] </p><p>&nbsp;</p><p>Naturally, before you do this in bulk, I would suggest that you do it with just a few cents so you can get a feel for what this stuff will do.</p><p>&nbsp;</p><p>Avoid inhaling fumes, and always wear protective gloves, especially with the quantity you&#039;re working with. I also strongly recommend protective goggles. </p><p>&nbsp;</p><p>Good luck! Please let us know how it turns out. If you can post pictures here, that would be especially nice!!![/QUOTE]</p><p><br /></p>

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