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<p>[QUOTE=&quot;RonSanderson, post: 4052665, member: 77413&quot;]Let’s take acetone and compare it to nail polish remover, since I think that’s a more obvious place to start. The primary component of nail polish remover is, in fact, acetone. It’s mild, but it does dry out the skin. So there are additives to make it more human-friendly. A little moisturizer is nice, so both the skin and nail end up looking fresh and clean.</p><p><br /></p><p>So what may be absorbed into the skin will definitely not be absorbed into metal. But once the acetone dries off the coin, the additives remain. As stated above, even without repeatable experiments, a thought experiment leads most people to conclude that any remaining material will then start to collect dirt, dust, and airborne chemicals and hold them next to the coin.</p><p><br /></p><p>Pure acetone is found in the paint department at the hardware or paint store. Yes, it is a paint thinner, and if this is what the dealer is referring to, then that is exactly what is recommended. That is also where you will find pure xylene, which would be billed as a thinner for epoxy-based paints. Read the labels!</p><p><br /></p><p>But avoid a generic paint thinner that has other chemicals mixed in. They may have other purposes, such as helping to smooth and emulsify latex paint to the desired consistency. Again, whatever does not immediately evaporate will stay on the coin. Even if it does not harm the coin, it may attract a crowd of bad elements who can.[/QUOTE]</p><p><br /></p>

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