Thermosetting in a sentence as an adjective

UK hardcovers use cheaper paper and perfect binding, as do paperbacks; "perfect" binding is basically cut sheets held together using a thermosetting glue.

Or does it include thermosetting plastic and rubbers?It would be interesting if they could actually recycle car tires, I believe what currently happens is burning or shredding into mulch.

Thermosetting definitions

adjective

having the property of becoming permanently hard and rigid when heated or cured; "the phenol resins and plastics were the original synthetic thermosetting materials"

See also: thermoset