ORIGINAL: speedracerntrixie
Not all epoxies are created equal. I personally stay away from the 1:1 ratio epoxies for the reasons you have just stated.
Correct that not all are created equal but i disagree with the 1:1............
for some reason the glow end of this hobby is mostly unaware of the aerospace grade epoxy we use in the turbine side of the hobby. Hysol epoxy is a far superior product to anything Tower and most LHS have in the epoxy lineup.
9462 (white) and 9462F (gray) is an overnight (8hrs) 1:1 that is thixotropic (it doesn't sag/drip/run) so there's no need to add any fillers such as microbaloons, etc...after cure you'll pull wood/metal/fiberglass before you separate the glue joint.
E20-HP is a clear thixotropic with almost the same peal and tensil strength as the 9462 but a 20min pot life, it's a 2:1 ratio
E05-CL is a clear thixotropic high strength 1:1 ratio 5 min pot life.
the dispensing gun takes all the guesswork out of the ratio as it dispenses both equally and if you use the mixing nozzle it self mixes and you can apply it neatly like a calking gun.