PTFE rod is the most chemical-resistant of all known plastics. It does not age. PTFE has a wide range of practicable temperature from-180 - +260 degree and a wax-like surface to which anything hardly sticks. PTFE has the lowest coefficient of friction of all known solid materials. It has the best electrical properties of all plastics.Used in Electrical ,Insulation,seal,Antisticking materials. 
SPEC

Outer diameter: 4-50mm
Length: 50-300mm

Density: 2.1-2.3g/cm3

Special sizes could be ordered