Vacuum sealed ?

ss350camaro

Anybody vacuum seal their coins? If not, why ?

newport

I thought of doing the same thing. Even with PCGS slab coins. I called PCGS and they said you should never do it because the coins need to "breath". Then I called NGC, of course they gave me the complete opposite answer, they said it would be fine. Needless to say I never got a real answer. I thought It was best not to seal them and have no plans on ever doing it. I bet it's a good idea though. Adam from Miami......

RegistryCoin

It'll suck all the toning off?

BAJJERFAN

vacuum seal them in what?

ss350camaro

<< <i>vacuum seal them in what? >>



you know ......... Those foodsaver type bags. The machine vacuums out the air and then seals the bag.

KlectorKid

Im not surrounding my coins in soft plastic. PVC!

mas3cf

HUH!? That whole "coins need to breathe" doesn't make any sense to me at all.... if they did, why would PCGS slab them? The thing I would worry about with vacuum sealing is contact with the baggie itself... unless it's an inert bag, you may get unwanted discoloration ouor even PVC damage if that's what your bag is made of. Polyethylene or teflon bags should be pretty safe, though. If you're willing to shell out a couple hundred bucks, you can get a vacuum chamber to keep your coins in. This would be ideal, IMHO. Alternatively, you could use an inert atmosphere such as dry nitrogen or argon, but if I weren't a chemist, I would have no idea where to get a supply of those gasses!!

Barry

Klector - Food storage bags are PE (Polyethylene). The FDA prohibits the use of PVC in any food storage product due to potential toxicity.

GTOster

I have a bunch of Silver 1 Oz. bars in a Vacuum bag have been there for years and they look as good as the day I got them no toning or spots
Hope this helps I put a few SAE in one also and nothing. Looks like the day they came from the mint
Paul

millennium

<< <i> called PCGS and they said you should never do it because the coins need to "breath". >>




Now we"know" why they fog up when brought in from the cold.....

nankraut

Let's see now...you spend a lot of money for a beautiful coin because you love coins and love to look at a beautiful coin. Wouldn't it be a little hard to look at it and enjoy it if it is wrapped up like a loaf of bread.

BAJJERFAN

Polyethylene plastic food storage bags are NOT moisture proof for LONG TERM storage purposes.

mas3cf

Interesting; I didn't know that! How does moisture get into a vacuum-sealed polyethylene bag? One would think if air can't get it, neither can atmospheric moisture...