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<p>[QUOTE=&quot;fusiafinch, post: 663311, member: 18382&quot;]Yes, PVC flips, as well as flips with other oils other than PVC, are certainly on the market. Some dealers will use these if they move inventory quickly or a temporary holder at shows. So it&#039;s essential to remove all of your coins from soft flips for long term storage.</p><p><br /></p><p>There is a test for PVC. Take a metal rod, like a steel hanger that&#039;s been stretched straight, and heat it up over a flame (like a gas range). While it&#039;s hot, press it against one of the flips so that some of the plastic sticks to the metal. Then, put the metal with the attached plastic back into the open flame, and see what color the flame becomes. If the flame burns with a green color as the plastic is burned off, then PVC is present.</p><p><br /></p><p>I think it&#039;s called the Beilstein test, and if you try this, have the hood over the range with the fan on. The burning of the plastic can cause release of toxic fumes. So don&#039;t breathe the fumes.</p><p><br /></p><p>I first saw this test in a column by Susan Maltby in Coin World a few years ago. She&#039;s a museum conservator and has described the test in Coin World, so if you&#039;re unsure about this process, consult the Coin World columns first.[/QUOTE]</p><p><br /></p>

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