Why would you even want to take the chance of a wing joint failure by not using epoxy, just because you dont have any at the house? Go to WalMart or your local hardware store and GET SOME EPOXY!!! Dont waste the time you've spent assembling your plane by using some other adhesive that WILL FAIL!!!! If you try it anyway, you dont have anyone to blame but yourself when you see your wings separate in the middle and your neat new plane come spiraling to the ground![X(]

Your profile says you have three years building and four years flying experience, and you had to ask this question??