Just about to fit the fin and tailplane (H Stab and V Stab) to my 29% WH Ultimate - the method shown of working epoxy into the joint sounds very messy - why not let thin cyano wick into the joint??? Is there a good reason???? Cheers in advance. David.

Epoxy fills gaps and is a stronger bond. It also has a limited amount of flexability when dry . I would use what the instructions say . I try to use titebond for most and epoxy for high stress areas. Very little if any CA . Also the slower the cure time for epoxy the stronger it is !

I used Epoxy on mine but I do wonder how Gorilla glue would do. Epoxy was easy to clean up after the the stab was in place.

Vaseline will prevent the glue from sticking to the bits it shouldnt. So I put a thin layer around the covering where I dont want the glue to cure. This makes clean up much easier.

Isn't Gorilla Glue pretty flexible when dry? I think that would be the reason NOT to use it on stabs.

Few, if any, of the urethane glues are flexible when completely dry. You get to find that out when you remove the "leakage" if you forgot to wipe it down during thedrying process.

Given the choice of adhesives in an application that would permit that choice, I would go with the urethane every time. CA's are too fast, epoxies are too time critical. Both leave you a bit uncertain of the adhesive coverage. Urethanes provide more application time and assure better coverage.

I did not specify CA in the manual because I did not test it. It would probably work OK if you can get good penetration, but honestly I find epoxy much easier to clean up. Just use alcohol to wipe off epoxy.

The other nice thing about epoxy is you can get decent working time with it. I usually use 30 minute stuff for a job like this, it allows 5-10 minute working time but I don't have to wait overnight for it to cure.

A word of warning; I live in Texas and my workshop is not air conditioned (explaining why nothing much gets done in the summer). Even slow set epoxy only lasts about 2-3 minutes in this heat. You can get more working time if you put the epoxy in the fridge before you mix it.

TF

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Thanks guys. In the end I used Gorilla glue. Given that I have a small gap both sides where I have sanded to get the h stab level I wanted the gap filling properties which after listening to you guys ruled out CA and epoxy. Gorilla glue is new to me but I was surprised how easy it is to clean off when foamy and delighted with teh strengt of the joint I did on a test peice. Good find!!!!

Thanks for your help guys.