Answer: Thermoplastics can be heated and cast or forced into a die after polymerization, meanwhile thermosetting polymers can only be altered during polymerization.
Explanation: Thermosetting plastics are synthesized by condensation polymerization. Thermoplastic is processed by injection moulding, extrusion process, blow moulding, thermoforming process, and rotational moulding. Thermosetting Plastic is processed by compression moulding, reaction injection moulding.