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<p>[QUOTE=&quot;Oldhoopster, post: 4950055, member: 84179&quot;]The plastic window on 2x2s are Mylar and won&#039;t react with your coinS.&nbsp; It might be the tape or the coins could have been stored in PVC flips before you got them.&nbsp; A short acetone&nbsp; soak will get rid of any PVC plasticizer residue (don&#039;t use nail polish remover).&nbsp; There are lots of threads in the archives explaining the safety precautions when using acetone.&nbsp; Read them if you aren&#039;t used to working with chemicals as its very flammable, and can ruin some types of countertops and plastic pipes.[/QUOTE]</p><p><br /></p>

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