Graphite-Filled PTFE Seals & Machined Components
International Seal supplies graphite-filled PTFE seals and precision-machined components for industrial applications requiring low friction, improved wear resistance and reliable sliding performance compared with virgin PTFE. Our range includes graphite-filled PTFE sealing rings, back-up rings, bushes, bearings, wear rings, guide rings, washers and custom-engineered components manufactured to customer drawings, samples or existing specifications.
Graphite-filled PTFE combines the low-friction characteristics of Polytetrafluoroethylene (PTFE) with the lubricating and mechanical benefits of graphite fillers. It is commonly selected for industrial sealing and engineering applications involving sliding movement, repeated operation and mechanical loading where improved frictional and wear characteristics are required.
International Seal supplies graphite-filled PTFE components to distributors, OEMs and industrial customers throughout the UK and internationally, supporting prototype requirements, replacement components and repeat production volumes.
Graphite-Filled PTFE Specifications
Graphite-filled PTFE provides low-friction characteristics and improved wear performance compared with virgin PTFE in suitable applications, making it useful for engineered sealing, bearing and guiding components.
- Improved Wear Resistance Compared with Virgin PTFE
- Low-Friction Sliding Characteristics
- Improved Wear Resistance in Suitable Applications
- Low-Friction Sliding Characteristics
- Good Thermal Conductivity
- Suitable for Guide Rings & Sliding Components
- Standard & Custom-Machined Components
Actual material performance depends on the graphite filler content, PTFE grade, component geometry, mating surfaces and operating conditions.
Graphite-Filled PTFE Seals & Components Available
International Seal supplies graphite-filled PTFE sealing and engineering components for industrial equipment requiring low friction, improved wear resistance and controlled sliding performance. Components can be manufactured to customer drawings, existing specifications or physical samples, supporting replacement requirements and repeat production.
Graphite-Filled PTFE Sealing Rings
Graphite-filled PTFE sealing rings are used in engineered sealing arrangements where low friction and suitable wear resistance are important. Components can be manufactured in different profiles and dimensions to match specific equipment, gland and sealing requirements.
Graphite-Filled PTFE Back-Up Rings
Graphite-filled PTFE back-up rings can provide mechanical support to elastomeric seals, helping reduce the risk of extrusion in suitable pressure sealing applications. The selected material grade and ring design must be matched to the operating pressure, temperature and gland geometry.
Graphite-Filled PTFE Bushes & Bearings
Graphite-filled PTFE bushes and bearings provide low-friction sliding surfaces for industrial mechanical assemblies. The addition of graphite may improve wear characteristics and support sliding performance in suitable applications where conventional unfilled PTFE may not provide sufficient service life.
Graphite-Filled PTFE Wear Rings
Graphite-filled PTFE wear rings are used in suitable mechanical assemblies where controlled sliding movement and wear resistance are required. Components can be manufactured to customer specifications, including internal and external diameters, thicknesses and specialist profiles.
Graphite-Filled PTFE Guide Rings
Graphite-filled PTFE guide rings help support and guide moving components within suitable hydraulic and mechanical assemblies. The material’s low-friction characteristics can help reduce unwanted contact between mating surfaces while providing controlled guidance.
Custom-Machined Graphite-Filled PTFE Parts
International Seal supports custom graphite-filled PTFE components manufactured to customer drawings or samples, including sleeves, spacers, washers, valve components and specialist machined profiles. Requirements can be reviewed for prototypes, replacement components and repeat OEM production.
Custom-Machined Graphite-Filled PTFE Components
International Seal supports the supply of custom-machined graphite-filled PTFE components for industrial sealing, bearing and precision engineering applications. Components can be manufactured to customer drawings, existing part numbers, dimensional specifications or physical samples, with material grade and manufacturing requirements reviewed against the application.
Machined components may include:
- Internal & External Diameter Machining
- Precision Turning & Milling
- Custom Sealing Profiles
- Back-Up Rings & Wear Rings
- Bushes, Bearings & Guide Rings
- Sleeves, Washers & Spacers
- Replacement Sealing Components
- Prototype & Repeat Production Parts
When specifying graphite-filled PTFE components, important considerations include dimensional tolerances, mating surface finish, operating temperature, mechanical loading, movement and chemical exposure. The selected graphite-filled compound should be reviewed for compatibility with the process media and suitability for the equipment design.
For repeat requirements, customers can provide annual usage forecasts or scheduled quantities to support production planning and supply arrangements.
Why Choose Graphite-Filled PTFE for Seals & Components?
Graphite-filled PTFE is commonly selected where the low-friction properties of PTFE are required alongside improved sliding characteristics and wear resistance. The incorporation of graphite fillers can improve tribological performance and reduce deformation under sustained mechanical loading compared with virgin PTFE, depending on the compound formulation. These characteristics make suitable graphite-filled PTFE grades useful for sealing rings, bushes, bearings, wear rings and guide components exposed to repeated movement.
Graphite may also improve thermal conductivity, although the extent of this benefit depends on the filler percentage and manufacturing process. International Seal can assist with reviewing the required component design and material specification to identify a suitable sealing or engineering solution.
For detailed filler compositions, mechanical properties and material specifications, refer to our Graphite-Filled PTFE Material & Properties Guide.
Graphite-Filled PTFE Seals & Components FAQs
What graphite-filled PTFE components do you supply?
International Seal supplies graphite-filled PTFE sealing rings, back-up rings, bushes, bearings, wear rings, guide rings, washers, spacers and custom-machined components for industrial applications.
Can graphite-filled PTFE components be manufactured to a drawing?
Yes. International Seal can review requirements for graphite-filled PTFE components manufactured to customer drawings, dimensions, existing specifications or physical samples.
Can you supply graphite-filled PTFE bushes and bearings?
Yes. We can support requirements for custom bushes and bearing components manufactured from suitable graphite-filled PTFE grades.
Are graphite-filled PTFE components suitable for hydraulic applications?
Graphite-filled PTFE can be used in suitable hydraulic sealing, guiding and wear applications. Material selection must account for operating pressure, fluid compatibility, temperature, movement and component design.
Can graphite-filled PTFE be used for seals?
Yes. Graphite-filled PTFE can be used in engineered sealing components where low friction, wear resistance and suitable mechanical performance are required. The correct compound and sealing profile depend on the operating conditions.
What is the difference between virgin PTFE and graphite-filled PTFE?
Virgin PTFE provides excellent chemical resistance and low friction without reinforcing fillers.Graphite-filled PTFE incorporates graphite fillers to modify friction, wear and mechanical characteristics, depending on the selected formulation.
Is graphite-filled PTFE suitable for chemical processing?
Graphite-filled PTFE can be suitable for certain chemical processing applications, but chemical compatibility depends on the compound formulation and process media. The selected material should be verified for the operating environment.
Need Graphite-Filled PTFE Seals or Machined Components?
International Seal supplies graphite-filled PTFE seals, bushes, bearings and custom-machined components for industrial sealing and engineering applications throughout the UK and internationally. Whether you require a replacement sealing ring, machined bush, wear ring, guide component or specialist PTFE part, our team can review your requirements and provide a competitive quotation.
Send us your component drawing, dimensions, material specification and required quantity. For specialist applications, include the operating temperature, pressure, process media, mechanical loading and movement requirements so that an appropriate material and manufacturing specification can be considered.