Polythene:
Odourless and very light.
Highly resistive and dielectric strength
It does not absorb moisture
Chemically resistant.
PVC
It is water resistant
It offers resistance to oxygen and sunlight
It has good aging properties
It softens at 80 °C.
Polystyrene
It has good resistance to chemicals and moisture
Low dielectric constant
Good electrical insulator.
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Thermoplastic is used to make many items in several different fields such as:
Electrical field insulation
Televisions
Telephone receivers
Switches
Cable insulation and packaging