I use a super glue that comes in the form of a "gel". It is much better than the fluid glues as it doesn't go every where when being applied and can be used much more sparingly.
Tip: moisten the surfaces to be glued and immediately wipe off the moisture, then apply glue. This gives a superior bond as it is the water molecules that the glue bonds to.
I use super glue to seal/heal the small cuts that one gets in ultra-light road bike tyres. Tony