Compared to PE, polypropylene (PP) offers increased stiffness, especially in the upper temperature range (up to + 100 °C). Among its key characteristics are high chemical resistance and favourable results in long-term testing when exposed to a range of media, even at high temperatures. Owing to their low flammability PPs and PP-EL-s offer protection in the event of fire. In combination with electrical conductivity PP-EL-s is the perfect explosion prevention.