Frustrating! Gave my kayak a third coat of Epoxy over five days ago and it it is either blushing or not curing? I've had heat lamps on it from time to time for hours at a time in my enclosed tent area, have had it outside in 60 degree days and today went to sand it again and it is still smearing? I have used this epoxy before and spoke with the manufacturer. He said to give it time to cure as most of the Chicago days have been in the 30s and 40's, especially at night. But this is getting crazy. I've taken my nail to it and it seems as hard as rock until I start with my orbital sander and smears right away. The only thing I could think of is the possiblity I mixed worng, even though I am using measured cups and usually triple check everything? If I did, will this ever dry?? On the outside chance it was blushing, I just washed it down lightly with soap and water and rough pad in an effort to get the wax off( if that is what it is)? How long do I have to wait to try sanding it again. I haven't been able to get photo s yet as my camera is being used. HELP!