Many Filler material are used in PTFE to improve it’s properties and make material more resistant to wear,creep & chemicals.
Most commonly used Filler material is Glass ,however many other filler materials like carbon,stainless steel,bronze,polyimide etc are used. Each has its own distinctive advantage & used accordingly in different industrial applications. For example with carbon filled PTFE you will have improvement in strength,wear resistance,thermal coductivity. With Bronze Filled you get improved wear resistance ,thermal & electrical conductivity.
Suflon Industries offers PTFE products in many filler material to meet your specific application or end use condition.