I use etex in my basement and up here in ND it get's pretty cold. My epoxy crystallized and I used the hot water trick. It worked a bit but I think I had it in the cold closet a bit too long. I still love the stuff for the most part....except when I don't. Which is when I get fish eyes, my cat messes with it, I drop the lure, I slip when I'm drilling out the line tie, I pull off epoxy and paint when I forget to take the tape off the bill before I epoxy the bait, when I spill it on my workbench and I don't notice until it cures etc. etc. etc.