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<p>[QUOTE=&quot;WeirdFishes, post: 1793584, member: 41261&quot;]Ok, I just want to point out that there was a thread in one of the other forums in which I discussed topics such as airtight, vacuum sealed, etc. It sounds like the original poster was asking if slabs are currently airtight or vac sealed, and if they aren&#039;t sealed properly could they be at a price which would not be cost prohibitive. Answers are current slabs are advertised as being &quot;airtight&quot; (no vac seal), and with regards to the second question the cost of properly storing coins for the LONG HAUL can be done fairly inexpensively though it would require someone with both the know how and the proper tools to maintain coins in a state of preservation. Steamfitters, Refer Techs, Maint. Tradesman, these would be people who would most likely be able to design a means of storage. The main problem todays TPG slabs have is that they are unfortunately made of a plastic. Plastic, by its its very nature, IS NOT USED IN THE CONSTRUCTION OF A PRESSURE VESSEL. Plastic is porous and simply can not be sealed. Metal (copper, brass, stainless) and Glass can be fashioned into pressure vessels. I would be happy to post a more thorough and clear description of the various terminology being used, and how to understand what is what.[/QUOTE]</p><p><br /></p>

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