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<p>[QUOTE=&quot;Kentucky, post: 5366354, member: 33176&quot;]PVC is polyvinylchloride which is a cheap strong plastic manufactured in large amounts.&nbsp; Usually used for rigid and semi-rigid items such as fence posts and irrigation piping, it can be softened by pumping in some oily chemicals before it is made into things like chair webbing and cheap 2x2 holders.&nbsp; The problem is that the oily chemicals (plasticizers like dioctylphthalate or DOP) can come out as the 2x2&#039;s age and the gunk can get on the coins and trap lots of other bad stuff.&nbsp; The other plastic I mentioned is PET polyethyleneterphthalate, otherwise known as polyester, which is already somewhat soft and flexible and doesn&#039;t need plasticizers and is a much better material for 2x2&#039;s.&nbsp; Not sure they mix plastics in any products.[/QUOTE]</p><p><br /></p>

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