Semitron® ESd 500HR Polytetrafluoroethylene PTFE electro static dissipative shapes offer an excellent combination of low frictional properties, outstanding dimensional stability, and a high resistivity range of 10E9 to 10E11 ohms per square. Reinforced with a proprietary synthetic mica, Semitron® ESd 500HR PTFE is thermally stable up to temperatures of 500° F / 260° C without degradation, and possesses high thermal insulation and a low coefficient of friction. Due to these characteristics, this grade is ideal for applications where controlled bleed off of static charges is critical.