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
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 glass fiber/molybdenum disulfide
Due to its unique composition, FL2™ has excellent physical properties and better creep resistance than virgin PTFE. The material also has higher wear resistance than most other PTFE grades containing fillers.
FL3™ PTFE filled with bronze
FL3™ has good mechanical properties and, compared to FL2™ and FL5™, can withstand higher loads.
FL4™ Modified PTFE filled with carbon
Good setting properties and durability, good thermal conductivity, and low permeability. Suitable for a wide range of applications.
FL5™ Modified PTFE
FL5™ has the same chemical properties as virgin PTFE and is also defined as a homopolymer in accordance with ISO 12086. FL5™ has significantly improved mechanical properties compared to virgin PTFE. Seal Engineering AS considers FL5™ to be our standard “virgin PTFE.”
FL14™ PTFE filled with Ekonol®
FL14™ offers excellent wear resistance. The filler is gentle on metal surfaces, making it a good choice for rotating applications. FL14™ is FDA-approved and is widely used in the food industry.
FL22™ PTFE filled with carbon and graphite
FL22™ is well-suited for demanding dynamic applications.