Hi Saberflyer, I too use a system 3 product called G2, it is a 2 to 1 ratio epoxy, takes like a day to cure so is good for some applications like firewalls and tail empenages and wing joining. I also mix it with micro balloons and use it as fillet. I wish Lee valley carried the Gel-majik Robert, sounds good. I use the epo-grip paste, it seems fairly odorless.
Calvi