"There is much conventional wisdom about how strong adhesives are and
which ones are strongest for rocketry use, but little hard evidence.
That two-part adhesives such as epoxies are the best is pretty
unequivocal, at least for high-power rocketry. But, is hobby shop
epoxy strong enough, or do you need to go to "professional" epoxy
systems? What techniques produce the strongest bonds?"

LINK

http://www.jcrocket.com/adhesives.shtml