Plastics are normally insulators in their nature. They charge very easily and will stay charged even when grounded. The risk related to uncontrolled electrostatic discharges may realize in ignition and explosions of flammable atmospheres, operational problems in manufacturing and material handling processes, electrostatic shocks for people or malfunction and breakage of electronics components and equipments.
Unlike normal plastics, conductive plastics have the ability to conduct electricity. When grounded conductive plastics remain in zero potential and do not accumulate static electricity. Electrically conductive plastics are right material choice for applications and environments where the risks related to static electricity are present and have to be eliminated.