Results- Vacuum Sealing Coins- 1 Month Later

That's funny though, because I think I remember in the "infomercial" they said that vacuum sealing coins, comics, and other collectables is an ideal way to store and preserve them.

In reality not all plastics leak anything. Many are extreamly stable until high temperatures are attained. I've put coins inside plastic to make letter openers, pen holders, paper weights, etc for many years and they look the same as the day they were put there. Obvilusly if it was plastic that effected coins, all of mine would have turned into a mess by now. The primary plastics that leak chemicals are the one where a substance is added to make it more flexible or to make pretty colors. And just as radioactive materials have a half life, so does any chemically treated substance where there is some decay by the disipation of that substance. However, eventually when it is all gone there just AIN'T no more. Such is the story of PVC which has become almost an expression when someone dosen't know what caused something.