A non-conductive polymer is a polymer that does not allow the flow of electrical current. This means that they do not contain any free electrons that can move within the material. Non-conductive polymers are often used as insulators in electrical applications, such as coatings for wires and cables, or as packaging materials for sensitive electronic components.

Some well-known examples of non-conductive polymers include: Polystyrene (PS), polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), polyamide (Nylon).

In contrast to non-conductive polymers conductive polymers are organic polymers or plastics that conduct electricity. Since organic materials normally do not conduct electricity, conductive polymers, also known as "conducting polymers", "electroactive polymers", or "synthetic metals", represent a class of materials with unique properties.