Usually 5 min epoxy. Can be had at any hobby / hardware / WM / FM type store.
For plastics, I use MM liquid cement w/ the black label. Just be careful with application. For PE, I use thick CA
For my wood RC stuff, I'll use thin & thick Cyano Acryltate (CA), Ambroid, Gorilla Glue, yellow wood glue, 5min, 15min & 30min epoxies, and zap goo.
Reid