PTFE-based thermoplastics
We can manufacture seals and other details in a variety of other PTFE materials with fillers specifically suited for a given application.
FL1™ Virgin PTFE
FL1™ har excellent chemical and thermal resistance. FDA-approved. Limited mechanical properties. If improved mechanical properties are required FL5™ or a filled PTFE should be considered.
FL2™ PTFE filled with with glass fibres/molybdenum disulphide
Because of its special composition, FL2™ has good physical properties and distinctly better creep behaviour than PTFE-virgin. Also higher wear resistance than most PTFE with fillers.
FL3™ PTFE filled with bronze
FL3™ has good mechanical properties, and can be used at higher loads compared to FL2 and FL5.
FL4™ Modified PTFE filled with carbon
FL4™ has excellent compression and wear resistance, good thermal conductivity and low permeability. Suitable for a wide range of applications.
FL5™ Modified PTFE
FL5™ has the same chemical properties as PTFE-virgin, and is also defined as a homopolymer according to ISO 12086. FL5 has highly improved mechanical properties in comparison to PTFE-virgin, see also the “Suggested Materials” section. Seal Engineering AS considers FL5 to be our standard “PTFE-virgin”.
FL14™ PTFE filled with Ekonol®
FL14™ has excellent wear resistance. The filler is very gentle to mating metal surfaces, making it a good choice for rotary applications. FL14 is FDA approved and widely used in the food industry.
FL22™ PTFE filled with carbon and graphite
FL22™ is suitable for demanding dynamic applications.
