Cozy2do,
I am using MGS epoxy in the building process. The other day I was in Aircraft Spruce East's facility buying supplies for my Cozy MKIV (I'm on chapter 8), where it was suggested that I use West System epoxy in the finishing processes. Upon reading the West System pamphlet, one section in particular helped me decide how to heat my garage. On page three of the pamphlet it says "NOTE! Unvented kerosene or propane heaters can inhibit the cure of epoxy and contaminate epoxy surfaces with unburned hydrocarbons." Now I'm no engineer, but it seems to me that one epoxy is not that much different than another when it comes to epoxies being contaminated during the curing process. So I will not use kerosene or propane heaters and if it gets too cold for my little space heater, I do other things like cut foam cores, shape parts, etc.
Also anyone having problems spelling can first write in Word, run your spell check, and then copy and paste into the discussion area.
Enjoy the build!