Try Part number 74695A71 at mcmaster carr. The gun is $20.00 and tips are a buck a piece. The glue is $10.00 a cartridge at mcmaster carr. That's about $35.00 entry fee. In a jet, I typically use 15 tips. Spread the cost over 3 jets and you're at $25.00 to $30.00 a jet for peace of mind that the bulkheads are secure. Considering that you pay $10.00 at the LHS for 5 minute epoxy twice a month for fixing all your little banger planes, the investment into the right stuff is chump change when you consider anyone of the jets I've been associated with have flown more than 20 flights in a typical weekend of flying.

Aeropoxy really is the right product to use for this application. In learning this hobby I've cut pretty much every corner than can be cut. I always end up spending twice as much cause I buy the cheap product first and then end up spending again "upgrading". That's probably where you are at. I won't shortcut anything anymore cause the result is piss poor performance. Like the time I put Hitec 5645 Digital Servos in the ailerons of my Isobar. Damn things would not center. For $80.00 more I could have put 8411's like I did on the elevator. I ended up putting 8411's in the ailerons and performance was perfect. I know have two POS hitec's that I wouldn't put in a 40 size trainer. They are crap, Even though marketed as a "Digital Servo". Might be digital, but IMO they got the 0's and 1's all screwed up.

Sean