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<p>[QUOTE=&quot;happycobra, post: 70151, member: 3750&quot;]I asked a plastics chemist who know of the old problems with PVC. He said, the brake down of PVC or (PolyVinyl Chloride) cased a chemical that eats coins and other things like photos.&nbsp; </p><p><br /></p><p>Also, most plastics contain chemicals called plasticizers witch makes plastics soft. These plasticizers will over time damage coins the same way as PVC does. He couldn’t tell me what to buy but he would guess that most houses hold plasics would be bad for my collection in the long term. He recommended I stay with the holders made for collectors or for keeping photographs, as they would not have such harsh chemicals (not all plasticizers are bad). If I wanted to order materials to make coin holders he recommended using Acrylics that are not modified to be shatter resistant or clear Mylar.[/QUOTE]</p><p><br /></p>

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