Polytetrafluoroethylene

Also known as Teflon (Du Pont brand name), PTFE is a highly crystalline thermoplastic with excellent sliding properties, anti-adhesive surfaces, excellent insulation properties, an almost universal chemical resistance and an exceptionally broad temperature deployment spectrum. However, this is offset by low mechanical strength and high specific weight compared to other plastics. To improve the mechanical properties, PTFE is compounded with fillers such as glass fiber, bronze, carbon, graphite etc.