Yeah I did mine twice. First time I just tried glueing them together with the epoxy no go. So I used a Dremal and notched them on the back side. Then used some rough grit sand paper to give the epoxy something to grip and made a goopy mass on the back side. I used the slow cure epoxy. Lots of tape to hold it together while it set up. So far knock on wood it has stayed together. It was on the sail panels. Had to be extra gentle when putting them in they were so brittle.