PTFE Gaskets
Precision Cut PTFE Gaskets Manufactured to Your Requirements
Hollinbrow Precision Products (UK) Ltd manufactures precision PTFE gaskets, seals, washers and custom components to customer drawings, CAD files and individual specifications.
From simple circular washers and flange gaskets to complex profiles with multiple holes, slots and cut-outs, we can manufacture both prototype quantities and production batches for customers throughout the UK and worldwide.
PTFE (Polytetrafluoroethylene) is an excellent gasket material where chemical resistance, temperature resistance, low friction and electrical insulation are important. Its combination of properties makes it particularly suitable for demanding sealing applications where conventional rubber or fibre gasket materials may not be appropriate.
Why Use PTFE for Gaskets?
PTFE offers exceptionally broad chemical resistance and can be suitable for applications involving aggressive chemicals, acids, solvents and other corrosive media. Depending on the particular grade and operating conditions, PTFE gasket materials can operate across a very wide temperature range; specialist PTFE gasket products are available with published operating ranges extending approximately from -268°C to +260°C.
Other advantages include:
- Excellent chemical resistance
- Wide operating temperature range
- Very low coefficient of friction
- Low moisture absorption
- Excellent electrical insulation properties
- Non-stick characteristics
- Good resistance to ageing and weathering
- Suitable for a wide range of industrial sealing applications
- Available in virgin and specialist filled or expanded PTFE grades
Custom PTFE Gaskets
Hollinbrow can manufacture PTFE gaskets in virtually any 2D profile, including round gaskets, flange gaskets, sealing rings, washers, rectangular gaskets and complex bespoke shapes.
We can produce parts directly from your engineering drawing or CAD data, helping achieve accurate profiles and repeatability without restricting designs to standard off-the-shelf gasket sizes.
We can support requirements ranging from one-off prototypes and development parts through to repeat production quantities.
PTFE Gasket Materials
Different PTFE materials are available depending on the application. These can include:
Virgin PTFE – providing excellent chemical resistance and electrical insulation.
Filled PTFE – PTFE incorporating selected fillers to modify properties such as dimensional stability, creep resistance, wear resistance or compressive behaviour.
Expanded PTFE (ePTFE) – a highly conformable gasket material particularly useful where flange surfaces are uneven or where good sealing performance is required at relatively low gasket stresses. Industry technical data describes ePTFE as highly compressible and able to conform to irregular or rough surfaces.
We can help customers select an appropriate material, but final suitability should always be confirmed against the application’s temperature, pressure, chemical exposure and sealing requirements.
Applications for PTFE Gaskets
PTFE gaskets are used throughout many engineering sectors, particularly where chemical resistance or cleanliness is important. Typical applications include chemical processing, pumps and valves, pipework and flanges, pharmaceutical equipment, food-processing machinery, electrical and electronic equipment, laboratory equipment, aerospace and specialist engineering applications.
Specific grades of PTFE gasket material are also available with approvals including FDA, REACH, RoHS, USP and, for certain materials, potable-water and oxygen-service certifications. These approvals are grade-specific, so specify the required certification at the enquiry stage.
Precision Manufacturing at Hollinbrow
Hollinbrow specialises in precision components and has extensive experience manufacturing thin and difficult-to-handle materials.
Our manufacturing capabilities allow us to produce intricate gasket profiles with accurate internal and external features, small holes, slots and complex geometries, while maintaining consistent quality across repeat batches.
Where required, we can also manufacture associated components, including rubber gasket, plastic gasket and paper gasket parts and metal shims, so you have a single source for many precision sealing and spacing components.
Need a Custom PTFE Gasket?
Send us your drawing, DXF/STEP file, dimensions or sample, together with the PTFE grade, thickness and quantity required.
Our team can review your requirement and provide a quotation for anything from a prototype or small batch through to regular production.
Request a quote for PTFE gaskets: contact our team, call 01952 299333 or email sales@hollinbrow.co.uk with your drawing and specification.
Frequently Asked Questions About PTFE Gaskets
What file formats can I send for PTFE gaskets?
Send a drawing, DXF or STEP file, or a sample, together with the PTFE grade, thickness and quantity.
Which type of PTFE should I choose? V
irgin PTFE suits most chemical and electrical applications, filled PTFE improves creep and wear resistance, and expanded PTFE seals uneven flanges at low stress. Tell us your media, temperature and pressure and we will advise.