Question Regarding 2X2 Snaplock Holders???

That is correct.

 

Yes Michael, I am very well aware of that technicality. But the plasticizer you're talking about, in discussions and ordinary conversation it's pretty much always simply referred to as PVC, and or PVC residue so as to avoid confusion.

edit - I should have added that is good to add the info you did for those who were not aware of it.

Afraid I disagree with ya on this point. It does not leach out as a liquid but as a gas. Then the gas condenses on the coin and turns into a viscous liquid as greater and greater amounts of it accumulate.

In the beginning that liquid is crystal clear, almost invisible to the naked eye. It is only after it has been there a while that it takes on its greenish shade of color. And over time the greed shade fades, the substance dries out and can even become flaky in nature, and it often becomes a tan color, then brown, and in some cases it can even become quite dark, almost black.

The point here is that PVC residue is not static in color nor form, it is ever changing in color and form as the chemical reactions occur over time. The reason it is important that folks know this is so it can be more readily recognized in any and all of its forms and colors - all of which are harmful to the coins.

 

But you still haven't dome yourself any favors. Yes, the kiontains protect the coins from the cardboard dust particles put off by the cardboard 2x2s. But they do not protect the coins from the gas containing sulfur that is put off by the cardboard. Kointains are not airtight, and pretty much all plastics are air permeable to begin with, which means that the harmful gasses put off by the cardboard go right through the face of the plastic and get to the coins anyway.

The one and only solution that works is to remove any and all non inert materials from the storage area of your coins.

 

Yes it is true. By law, no product that is manufactured for food packaging and or food storage is allowed to contain any of the harmful plasticizer found in PVC products.

 

All paper products, except those specifically manufactured to be of archival quality, are made with sulfur. And yes that includes all modern products. And, all paper products put off gasses containing sulfur from the moment they are produced. This is not an opinion, merely a simple scientific fact. Everything puts off gasses as it decays - and everything decays. Even the metal of the coin itself puts off gasses as it decays.

Lastly, physical contact is not the problem, or very rarely so and only with certain substances. The problem is the air and the gasses and contaminants it contains. Air is the primary enemy of coins.