ORIGINAL: Edwin
You want denatured alcohol from the hardware store. Not medical alcohol, it has too much water in it. It only takes a touch to thin epoxy, its easy to mix too much and end up with the gooey mess you have now.
Edwin
Hmmm...so what IS denatured alcohol? Does it have a chemical name I might ask for here in Japan? As far as the "sticky" epoxy I have now...well, I haven't diluted it all all yet, just mixed (small) equal amounts.