The clear coat is very tempermental temperature wise. If it isn't 70 degrees, with our humidity you will have problems. I use it in the basement but have to crank the heat. The glove is a must too.
mixing thouroughly and climate control are the keys to a great finish imho. i mix for 3-4 minutes(timed) and have a dehumidifier in my epoxy room and get the results i want.