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do you feel disappointed that TPG slabs are not air tight? (originally posted may 2010)

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  • << <i>Might it just be a matter of finding the right technology to accompany totally air-tight slabs? Such as mylar gaskets, and with helium filling any empty interior space? Is PCGS experimenting with such possibilities? >>

    Filling a slab with gas does nothing. Think about it. If the slab leaks, the gas leaks out. If it doesnt leak it doesnt need any gas inside. image
  • ...I have wondered ,

    after reading on this site a couple of time's ,

    that PCGS uses a band saw to remove coins from slabs ;

    that creates a lot of very fine particulates that could adhere to the coins surface .......

    How would that "plastic dust" be removed before re-encapsulation ?
  • tahoe98tahoe98 Posts: 11,388 ✭✭✭


    << <i>...I have wondered ,

    after reading on this site a couple of time's ,

    that PCGS uses a band saw to remove coins from slabs ;

    that creates a lot of very fine particulates that could adhere to the coins surface .......

    How would that "plastic dust" be removed before re-encapsulation ? >>



    ...compressed air. image
    "government is not reason, it is not eloquence-it is a force! like fire, it is a dangerous servant and a fearful master; never for a moment should it be left to irresponsible action." George Washington
  • I remember a post or two that brought up this possibility ;

    and if I'm not mistaken PCGS responded that they did not use compressed air on coins submitted to them
  • LanLordLanLord Posts: 11,723 ✭✭✭✭✭
    I would hate to see what would happen to an air tight slab when being shipped via air travel. Sitting up at 35,000 or so feet with all the other mail those slabs would burst.

    They would probably also bulge significantly when the weather changes between high pressure and low pressure systems.
  • Tdec1000Tdec1000 Posts: 3,852 ✭✭✭


    << <i>Nope, I want my toned coins to slowly continue toning, ie let nature take its course so to say. I am sure Ricko will disagreeimage >>





    and....if there is any contaminants or verdisgris on your coins they will continue to grow like mold!!
    Awarded the coveted "You Suck" Award on 22 Oct 2010 for finding a 1942/1 D Dime in silver, and on 7 Feb 2011 Cherrypicking a 1914 MPL Cent on Ebay!

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