So, there I was, cleaning some crud off a couple of coins in my remaining six square inches of desk space, when I oopsed and dropped an acetone-soaked cotton bud on a coin bag.
You know what's coming, right? Acetone melts plastic, so big gloopy mess, yeah?
Well, no.
Coin bags are made from Low-Density Polyethylene. LDPE. And here's what the chemical forum has to say about it:
Re:Storing Acetone
« Reply #1 on: May 03, 2005, 01:40:06 AM »
"To store acetone for any length of time use a LDPE (low density polyethylene). Nalgene makes a variety of them and can be found at most outdoors stores. Just make sure they are LDPE, not HDPE (high density polyethylene) or some other plastic. They will hold up but for long time storage you need LDPE."
The ink used to print the denominations on the bags, however, well, to put it mildly, Acetone eats that up like there's no tomorrow.
So, take one cotton ball, soak in acetone, wipe bag.
Now take the clear plastic bag to your heat sealer, with a handful of coins.
Hey, PRESTO!
Two sealed 2x2 bags, and two ziplock 2x2's, for FREEEEEEEE!
(http://goo.gl/PZwF6)
A little cutting and trimming, and its just like a bought one.. :yahoo: