I purchased a sample package of these since they are a bit cheaper than the Eagle Holders I use and seem like a big step up from regular cardboard/mylar staple 2x2s. The mfg rep was at the ANA today and explained that the paper is completely acid and dust free. The adhesive is archival quality, won't gas off or migrate onto the coins or come undone. They have the European style tab at the top and seem to seal up well. Anyone else use these or try them with any results to report? Opinions please...did I waste my money?
For expensive coins that warrant that kind of protection and expense, yes, they are a good option as are the Eagle holders, but for lower end coins do the self seal make sense over the staple 2x2 is my question.
How tight are they to the size of the coin? Personally, I'd be worried about nipping the edge of coin when sealing them up...
They size up well and they have instructions on how not to let the coin touch the adhesive. The tension on the coin seems nice and tight and the mylar seems a bit thicker too.
I use them too. I put my smaller coins in them. They don't work as well on the larger coins like halves and silver dollars. The cardboard is more sparse on these, so there isn't sufficient adhesive to keep them shut, and they have a tendency to pop open after a while.
I jut tried the half dollar size last night and they seemed to work just as well. The big challenge will be the silver dollar size.
I've always been really apprehensive about using 2x2s with the sticky adhesive on them. I'm not comfortable with chemicals around my coins.
Even a staple 2x2 has questionable cardboard as far as acid goes and there is an adhesive or glue to hold the mylar in place on the cardboard. The mfg rep told me the adhesive they use is of archival quality and non-reactive as that was a big concern I had. We shall see. The cardboard they use is 100% acid free and archival neutral with coins in mind. Again, we shall see. I will keep an eye out for the larger coins coming undone, but so far the smaller ones are holding up very well.
I have about the same input. I use them on all my coins except halves and silver / ike dollars. After a short time (a week) my dollars had popped the adhesive open. All my smaller coins are nice, snug and well sealed. I am still working out what to do with my silver dollars (peace & morgans) but I believe soon I will be slabbing them. As long as you are very careful when drawing the 2x2 together, you will not get adhesive on the coin. If you have no patience, have the jitters, lack of sleep, etc. I do not recommend using them. But for the most part, I feel these were absolutely great.
I've only ben using them for 5 or 6 months but I like them. I have a couple larger size coins in them but prefer air-tites for those; I suspect that having less surface to press together the adhesive might well separate in time. What I do li8ke is when I have a coin that just BARELY fits the hole so that when I press one side down I can make the mylar give a bit so that the coin protrudes (covered) outward on the one side. Shows the edge, somewhat. too bad I can't MAKE that happen on any coin that has an interesting edge.
I tied the half dollar size and they still seem really tight with no problems so far. I guess there is no such thing as the "perfect" coin holder, not even slabs with Intercept Shield as they can all still tone. I suppose the only perfect holder would be air tight and filled with an inert gas like Krypton or Argon.
