> >I am preparing my aircraft to painting so now I am glassing the surface area >of the wings and also the fuselage. >Dubi Gefen ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Dubi, I looked at your web page and it appears you are past the "glassing" stage if you are ready to paint. Your work looks first class. Are you working instead with the "filler" to level and smooth the surface for paint? My experience is that any epoxy, if mixed correctly, will harden even in cooler temps. It just takes longer. Check your mix ratio and try to get some type of heat to the surface like setting in the sun, etc. Contain your work to a small area until you have the process corrected. Good luck........ Larry Flesnre