That's a very vague question -'plastic' covers over a hundred different materials !
In most cases if it's a rigid plastic, epoxy will cover most repairs. If it's flexible as many plastics are then you have to be more specific about which plastic.
The best glue for vinyl plastic is a cyanoacrylate adhesive, also known as super glue.
The best glue for bonding vinyl to plastic is a cyanoacrylate adhesive, also known as super glue.
A good epoxy .
The best glue for acrylic plastic is a solvent-based adhesive specifically designed for bonding acrylic materials.
with super glue stick it back on
Any super glue will bind hard plastic.
There will be solvent for the plastic. -Find out WHAT plastic, then get the solvent. -A 'plastics' store or plumbing store is your best bet.
The best type of glue for bonding polystyrene plastic is a solvent-based adhesive specifically designed for use with polystyrene.
ALL plastics have their own particular glue or solvent - USE it rather than any other.
The best glue for polystyrene is a solvent-based adhesive specifically designed for bonding plastic materials.
You can find vinyl repair kits at your local auto parts store.
Epoxy is best for that.