GENERAL PROPERTIES OF PTFE:
PTFE mechanical properties are low compared to other plastics, but its properties remain at a useful level over a wide temperature range of -100 deg. F to +400 deg. F. (-73 deg. C to 204 deg. C) Mechanical properties are often enhanced by adding filters (see paragraph below). It has excellent thermal and electrical insulation properties and a low coefficient of friction. PTFE is very dense and cannot be melt processed - it must be compressed and sintered to form useful shapes.
PTFE's mechanical properties can be enhanced by adding fillers such as glass fibers, carbon, graphite, molybdenum disulphide and bronze. Generally, filled PTFE's maintain their excellent chemical and high temperature characteristics, while fillers improve mechanical strength, stability and wear resistance.
The properties of 25% glass-filled and 25% carbon-filled PTFE grades are shown below for comparison purposes. There are literally dozens of different filled PTFE products and grades - too many to listed here. Please contact Boedeker Plastics for more information about other filled PTFE products for your application.