Thermoplastics | Thermosetting plastics |
It is a class of plastics in which the individual units may be linear or lightly cross linked. | It is a class of plastics in which the individual units undergo heavy crossing after shaping. |
Melts on heating which can be remoulded into desired shapes, which can be reversed. | Once shaped, cannot be remoulded after reheating. |
Examples include Poly vinyl Chloride. | Examples include melamine. |