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<p>[QUOTE=&quot;Just Carl, post: 262872, member: 4552&quot;]Why not just look at the package the flips come in and contact that manufacturer for what the product contains. I think you would find that all flips are NOT PVC at all. Similarly not long ago someone said Zip Lock plastic bags contain PVC. Someone contacted several manufacturers and none contained PVC. Way, way to many false statements about products with no foundation. By the way if PVC is so harmfull, note the amount of PVC piping being sold at Menards, Home depot, etc and used in homes for water piping. Gee are we all going to turn green? </p><p>As to Acetone, regardless of where you purchase it you should always test it prior to usage on anything except painting. The way to test it is to just place some on a very clean glass plate and allow to evaporate. If there is a residue, usually white, discard as contaminated. If you purchased it at, say Walmart, it is purely dependant on how long it has sat on a shelf or in storage somewhere. Of course in our chem labs we only use solutions in glass containers to eleviate such contaminates.</p><p>As to some flips being stiffer than others it is usually due to the thickness of the product, not the type of material. If you were familiar with the many thicknesses of Mylar, for instance in the Engineering field, you would know that is comes in so many thinknesses that it is difficult to bend the thicker stuff and yet chemically the same. </p><p>As to Acetone effecting Copper. I&#039;ve done some extensive testing since I&#039;ve heard this numerous times. Once leaving a bunch of copper coins in a jar of Acetone. Two days indoors and two days outdoors since many say the sunlight creates the damage to Copper with Acetone. I must be doing something wrong. After four days, nothing. I mean nothing at all. Less dirt of course but no effect on the coins.&nbsp; </p><p>As to coin stores carrying&nbsp; anything that may damage your coins. Why not. Many sell chemicals to clean coins. The same dealer may tell you your not supposed to clean coins but it you want to here is the stuff. They make a living off people that will buy anything you know.[/QUOTE]</p><p><br /></p>

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