Carbon Filled PTFE was developed to provide a PTFE based material with improved mechanical strength.

In Carbon Filled PTFE formulations, also known as Carbon Filled PTFE Compound, the resultant material has excellent mechanical and wear properties, retains excellent frictional properties and is an excellent choice for seals and rings in dynamic and high-pressure applications.

Carbon Filled PTFE Properties

PTFE on its own has excellent frictional properties, elasticity and wear resistance but relatively poor mechanical strength and tends to fail in high PV applications. Carbon in itself is a brittle material with poor wear properties and mechanical strength. 

However, together they offer excellent mechanical and wear properties, provide good thermal conductivity, low permeability and is also electrically conductive.

Good thermal and electrical conductivity
Good chemical resistance
Very economical
Improved wear resistance under load
High percentage fillers mean low elongation
Conductivity can be a problem