Epoxy?

I think JB weld should work OK. I have used it for similar things many times. Take some precautions. First, don't use the 5 minute version. It is not quite as strong as the stuff that cures overnight. Second, the area (similar to paint prep) must be scuffed up and CLEAN. Also, make sure to mix it thoroughly. Improperly mixed epoxy may look OK, but it won't be as strong as a properly mixed batch.