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<p>[QUOTE=&quot;brinssig, post: 4051350, member: 12147&quot;]Do you know where I can find the documentation to back up what you have told me about how harmful paint thinner can be to a coin?&nbsp; Are there any pictures of coins that have been treated with paint thinner from a few years ago?&nbsp; I don&#039;t see any oily residue from the coins inside the holder and I don&#039;t smell anything from the coin.&nbsp; I get more oily residue if I use Coin Care on the coin.</p><p><br /></p><p>I must have over 100 hundred coins that I have treated using either paint thinner or MS70 on them.&nbsp; It is almost impossible for me to remember which coins I have used either paint thinner or MS70 on them.&nbsp; Is there any way to treat the coins as a preventive measure to prevent any harmful effects from using paint thinner or MS70 on the coins?&nbsp; How does one even know if a coin being bought has been treated with paint thinner? With MS70 it can be a little easier to tell if the coin has been treated.&nbsp; The easier ones to spot are the ones that have brown areas on them.&nbsp; There is one coin in particular that had perfectly clean surfaces on the coin when I bought the coin but now it is tarnishing like crazy.</p><p><br /></p><p>How do you know in which cases to use MS 70?&nbsp; I haven&#039;t noticed anything really bad from using MS70 on my coins.&nbsp; The worst that I see is sometimes the coin will turn color in areas where there was something removed but I assume it is because there was something on the surface preventing oxygen from getting to the coin and exposing the surface is making it turn brown.</p><p><br /></p><p>I didn&#039;t know that acetone is not supposed to be flushed down the sink.&nbsp; Luckily I think I have only used it once before but it was flushed down with a lot of water.&nbsp; Would it be against the law to soak it up with a paper towel and put it in the trash?[/QUOTE]</p><p><br /></p>

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