RE: Epoxy Not Setting?
I use epoxy at the flying field when the temp is in the mid/upper 90's with index's over 100 with no problem. I can tell you that incorrect mix ratios are NOT going to help a thing. Not exactly sure what you are doing wrong (if anything). Use the prescribed mix ratios and remember some are by weight and some are by volume. What brands are you trying and what are you trying to do with them? How big of a batch are you mixing?