∙ Thermosetting plastics can withstand heat. They do not deform on heating. They have higher strengths and melting points compared to thermoplastics. Melamine and Bakelite are the examples of thermosetting plastics.
∙ Plastics are non-biodegradable materials. Materials that do not decompose through natural process are known as non-biodegradable materials. Bakelite and melamine are plastics which will take several years to decompose. Thus they are non-biodegradable materials.