... practicable temperature from -180C~+260C and a wax-like surface. Filled Teflon rod has the lowest coefficient of friction of all known solid ... materials. Filled Teflon bar has the best electrical properties of all plastic.Use of teflon Rod: The electrical insulation used ... , 180, 200, 250, 270, 300Length ( mm )100mm, 300mm, 1000mm, 2000mm Teflon filled Rod