Yesterday morning I filled some cracks in a tabletop for an end table with some devcon epoxy I picked up from the hardware store. The top is reclaimed red fir at 5% moisture. Brought it into the house so it was at about 70°. 24 hours later one tube out of the two I used is still gummy and sticky. I mixed them both the same way. Has anyone had this problem before, or have any advice about what I can do? I really don't want to build another top.