PTFE compounds
Why use a PTFE compound?
A large variety of compounds can be added to improve the properties of virgin PTFE for a specific application.
Fillers are incorporated into PTFE for the following reasons :
- to increase wear resistance
- to reduce cold flow under load
- to increase thermal conductivity
- to reduce thermal expansion
- to change electrical insulation properties
- etc.
Vanéflon can supply a vast range of standard PTFE compounds : PTFE filled with glass, carbon, Sumikasuper, graphite, bronze, stainless steel, PI, etc. As we have more than 100 standard PTFE compounds in stock, we can supply you very quickly.
Vanéflon can even develop specific custom-made PTFE compounds for specific applications.
If you need any help determining the most appropriate PTFE compound, please contact us.
A stronger alternative to pure PTFE
PTFE is known for its exceptional resistance to heat and chemicals. But in its pure form, it’s relatively soft and prone to deformation under load. That’s where PTFE compounds come in: by blending PTFE with selected fillers, you get a plastic that performs better in demanding industrial conditions.
VIRGIN PTFE
is used in a wide range of applications where no high mechanical strength is required and where the use of compounds is not allowed
Applications: chemical-, food-, pharmaceutical- and electrical industries.
mPTFE (Modified PTFE – TFM)
same as virgin PTFE but improved creep resistance and reduced porosity. Excellent weldability.
Applications: coated valve discs, valve seats, linings, etc.
PTFE + GLASS
increases resistance to wear and pressure.
Applications: construction parts, bearing pads, ball seats, etc.
PTFE + GRAPHITE
good thermal conductivity and excellent lubrication properties
Applications: bearings, sliding pads, etc.
PTFE + CARBON
high heat conductibility and high resistance to wear and pressure.
Applications: compressor rings, piston rings and other dynamical seals, etc.
PTFE + BRONZE
high pressure resistance and low coefficient of friction.
Applications: bearings, etc.
PTFE + SUMIKASUPER
improved mechanical properties without increasing porosity
Applications: lip seals, shaft seals, etc.
PTFE + STAINLESS STEEL
high compression resistance, but only for low PV-values
Applications: seats in steam valves
PTFE + POLYIMIDE (P84)
exceptional filler component to improve PV-values
Applications: lip seals, rotary shaft seals, etc.
PB72
identical to P84 but improved thermal conductivity and higher PV-values. FDA approved.
Applications: lip seals, rotary shaft seals, etc.
What are PTFE compounds?
PTFE is part of the broader family of fluoropolymers. These high-performance plastics are known for their chemical resistance, thermal stability, and low friction properties. PTFE compounds extend these qualities even further by adding targeted mechanical advantages.
PTFE compounds are materials made by combining polytetrafluoroethylene (PTFE) with fillers such as glass fiber, graphite, bronze, carbon fiber, or ceramics. These fillers are chosen based on the performance boost needed, whether that means higher wear resistance, better dimensional stability, or improved thermal conductivity.
Common fillers and their benefits:
- Glass fiber: enhances wear and creep resistance
- Graphite: improves lubricity and reduces friction
- Bronze: adds mechanical strength and thermal conductivity
- Carbon fiber: increases strength and conductivity while maintaining chemical resistance
- MoS₂ or ceramics: used for extreme wear conditions
Compare technical specifications of the most common PTFE compounds
Download datasheet for PTFE compoundsProduct range
Vanéflon can offer rods, tubes, sheets and near-net shapes in a wide variety of materials and sizes.
Vanéflon’s specialised team will help you to find the optimal solution for your machined part needs at competitive rates.
Applications
Filled or modified PTFE is ideal for technical components that must perform in challenging environments. Think of:
- Seals and gaskets: long-lasting under heat and chemical stress
- Bearings and bushings: low friction and high wear resistance
- Piston rings and guide rails: maintain form under dynamic loads
- Pump and valve components: resist corrosion and abrasion
You’ll find PTFE compounds in industries like:
Why customers choose Vanéflon
High-quality products
Thanks to our extensive knowledge of high-performance plastics and the continuous monitoring by technical experts, we possess the necessary know-how from powder to final product.
Excellent service & support
We strive to have a one-on-one relationship with our customers. The Vanéflon team is always ready to answer all of your questions and to guide you in projects tailored to your company’s needs.
Cost efficiency
We analyse the needs of our customers to provide the most efficient solution possible.
Delivery reliability
We deliver as promised with flexible VMI systems to offer seamless support to the logistical processes of our customers.
Frequently asked questions about PTFE compounds
Tailored to your specs
At Vanéflon, each PTFE compound is designed with precision. Whether you need higher thermal stability, reduced permeability, or a specific coefficient of friction—we can formulate a compound to match your requirements.
Looking for machined parts made from PTFE compounds? Explore our custom components.
Need expert advice or a custom solution? Get in touch with our team.