Gaskets
Gaskets with defined compression and fluid conditions.
Fluoropolymer · Custom parts
CNC machining
of PTFE.
Low friction for sealing and sliding. We machine PTFE for gaskets, valve seats, and insulating parts with specific requirements.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- PTFE Fluoropolymer
01 / Why choose this material
Properties and uses
of PTFE.
Fluoropolymer with low friction, good electrical insulation, and broad chemical resistance. Suitable for sealing and sliding when deformation under load is controlled.
PTFE, polytetrafluoroethylene, is a fluoropolymer known by brands such as Teflon. It presents a non-stick surface and broad chemical resistance. It can deform slowly under load, so support and seal design is an essential part of the selection.
Learn about the CNC machining process ↗PTFE Properties
Mechanical reference · Proto&Go! material datasheet
- Indicative density
- 2.15–2.18 g/cm³
- Continuous use · ref.
- 260 °C
- Tensile strength at yield
- 25 MPa
- Tensile modulus
- 0,7 GPa
- Friction on steel · test
- 0,08–0,10
- Presentation
- Semi-finished for CNC
Mechanical values of unfilled PTFE from the PDF. Friction tested on ground steel, at 0.05 N/mm² and 0.6 m/s. It may slowly deform under load; reinforced variants and real conditions change the result.
Material datasheets
- Low friction
- Electrical insulator
- Broad chemical resistance
- Non-stick surface
PTFE applications
Valve seats
Valve seats with sealing and compatibility requirements.
Low-load sliding parts
Sliding elements with controlled loads.
Insulators
Electrical insulators manufactured according to grade and geometry.
02 / A choice based on usage
Choose PTFE
according to your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
Unfilled PTFE
For applications leveraging insulation, low friction, and chemical compatibility. Check deformation under load.
02
PTFE + 25 % GF
Glass fiber changes mechanical behavior and wear. It does not share all values of unfilled PTFE.
03
Creep and sealing
A gasket can change shape over time. Define load, temperature, and fastening to review the design.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
PTFE
finishes and appearance.
Material and process define the surface. These are the key factors for specifying your part's appearance.
Machining finish
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
Geometry and surfaces
For functional surfaces, define roughness and tolerances in the drawing. Feasibility is reviewed based on grade and geometry.
Your part requirements
Include the expected appearance and usage conditions in your request to confirm the quote.
04 / From design to quote
CNC machining
of PTFE.
Milling and turning allow manufacturing PTFE parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in PTFE.
The price to machine PTFE depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in PTFE.
Properties, applications, and manufacturing: answers to prepare your request.
What is PTFE and what properties does it have?
Fluoropolymer with low friction, good electrical insulation, and wide chemical resistance. Suitable for sealing and sliding when deformation under load is controlled. Mechanical values of PTFE without loads from the PDF. Friction tested on ground steel, at 0.05 N/mm² and 0.6 m/s. It may deform slowly under load; reinforced variants and real conditions change the result.
What parts can be manufactured in PTFE?
We can manufacture gaskets, valve seats, low-load sliding parts, and insulators. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.
Is PTFE and Teflon the same material?
PTFE is the abbreviation for polytetrafluoroethylene. Teflon is a trademark associated with fluoropolymers. For a machined part, you must specify the grade and whether it carries loads, such as glass fiber; the commercial name does not define all its properties by itself.
Why can a PTFE seal deform over time?
PTFE exhibits creep: it may deform slowly under a maintained load. Temperature and pressure influence this behavior. The seal design, its support, and the choice of a grade with or without loads must be taken into account.
Does PTFE resist any chemical and temperature?
It has wide chemical resistance, but not absolute. The thermal reference of 260 °C does not guarantee any load or exposure. Indicate the agent, concentration, temperature, and pressure to confirm the application.
How much does it cost to machine a PTFE part?
The price to machine PTFE depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload the 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a PTFE part?
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a PTFE part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in PTFE.
Upload the 3D file. We review feasibility and send you the quote.