Storing Coins In 2x2

I don't know what residue is on the scotch tape, if it impacts the coins and causes corrosion or not. I've had coins in stapled 2x2's for 30+ years that show no signs of change without the tape, so adding it seems unnecessary and perhaps an unknown risk to me. I've reholstered all my old coins from ages gone by from the little brown envelopes we used to use into mylar flips and from the old plastic flips into mylar as well.

I now keep my core collection in airtights. They look great in pull out drawers and are easily examined pretty safely by fellow coin conspirators.

The glue on any adhesive tape will break down over time, and the tape will 'let go'. It is reasonable to assume that broken down adhesives and will gas out, much like the fogging on the inside of car windows.

The obvious advantage of a cardboard 2x2 is that the attribution information and purchase details go with the coin. Sometimes, I have a bit of a problem writing around the staples!

BTW, I only use coppered staples.