Tried many glue and bonding products, the best i found are two part epoxy ( used it to fix a broken car door handle that looked a lost cause ) and i never use normal super glue. I use super glue that is very slow curing, they usually sell a spray you use to speed it up. But i found it does go off by itself just fine, it just takes longer.
The big advantage of it is that it does not go hard in the bottle like regular super glue has done on me several times in the past.