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<p>[QUOTE=&quot;GDJMSP, post: 2009945, member: 112&quot;]That is not correct. Even PCGS describes the wear that flips, whether PVC or mylar, can impart to coins. They also describe the scratches that mylar flips are known to impart to coins when the coins are put into or taken out the mylar flips. </p><p><br /></p><p>This is not new knowledge, it has been known for many years.</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>Yes the PVC in the soft flips can harm coins. But that only happens when the the PVC plaseticizers (the softening agents) begin to break down. And it takes time for that to happen. It might take a few months or even longer before the softening agents begin to break down. So there is no harm in using the soft flips for a short time.</p><p><br /></p><p>Dealers, and knowledgeable collectors know this. They also know that the soft flips cause less wear damage to the coins inside the mylar flips, and they also know that the soft flips are much cheaper to buy than the mylar flips are. Those things combined are why dealers and knowledgeable collectors use the soft flips, but only for short periods of time. They will never use them for long term storage.[/QUOTE]</p><p><br /></p>

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