Self Adhesive Coin Flips. I Worry About The Glue

ive never used adhesive 2x2s nor will I ever... if they are actually valuable you should think about getting them slabbed, or at least use snap cases but I normally use stapled 2x2s from my local coin shop its $2 for 100 and have never had a problem. my buddy once placed a coin wrong in a adhesive 2x2 and wrecked his 1923 AU Peace dollar. thats why I dont use em

EDIT: thanks 0xDA71D sorry little typo, if it was a Morgan dollar he would be a millionaire

As I mentioned in another post, how do you know who made those? Does your 2x2's have a manufacturers name, initials, trademark on them? I know many people purchase 2x2's from lots of different sources, but unless they say who made them on them, how do you know?
IF you really know who made them, it is easy to fine their address and/or phone number. Do that and just ask them what that glue is made from? Is is safe for coins? Have you tested it for coin safety? IF you can't get a real person and a real answer, just don't use them.