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PTFE(Telfon) CNC Machining

PTFE is an engineering thermoplastic with superb chemical and thermal resistance and the most affordable coefficient of rubbing of any kind of known solid.

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PTFE(Telfon) CNC Machining

Polytetrafluoroethylene, PTFE by short, is a high-performance plastic material known for its excellent non-stick properties, high-temperature resistance, chemical corrosion resistance, and electrical insulation properties. Teflon is the brand name for PTFE, while PTFE is its generic name.Teflon is the trademark name first registered by DuPont in the 1940s to describe the PTFE material they developed.PTFE and Teflon are different names for the same material.

PTFE/Telfon is used in various applications, including coatings, seals, piping, wire insulation, and kitchenware, among others.

PTFE(Telfon) Properties

Ultimate tensile strength Yield strength Young’s modulus (modulus of elasticity) Elongation at break Hardness UV resistance Application
PTFE 25 – 31 MPa 14 – 41.4 MPa 0.39 – 2.25 GPa 300 – 450 % 50 – 65 Shore D Good Chemical engineering General machinery construction Electrical applications Food industry Learn More

PTFE(Telfon) CNC Machining Surface Finishes

As Machined

Beadblasting

Laser Engrave

PTFE(Telfon) CNC Machining Gallery

Cost-saving Design Tips

CNC machining in PTFE/Teflon can be challenging, especially if tight tolerances are needed. Therefore, it is very important to make certain that the machining procedure is as problem-free and quick as feasible.

  1. Design the features on the same axis, which will minimize the need for more costly 4- and 5-axis CNC machines.
  2. Consistency is key. Keeping features such as internal corner radii and tapped holes consistent will also help save time and money on parts by reducing the need for tool changes. 

PTFE(Telfon) CNC Machining FAQs

Yes, PTFE (commonly known as Teflon) is a very slippery plastic, which makes it a good material for machining low-friction parts such as bearings. PTFE resists high temperatures and chemicals/solvents making it an excellent insulator.

Polytetrafluoroethylene (PTFE) is a thermoplastic.

he advantages of PTFE (polytetrafluoroethylene) include:

Low friction
Self-cleaning
Durability
Effective across a wide range of temperatures
Non-flammable
Corrosive resistant
High electrical resistance

The disadvantages of PTFE include:

Price
Difficult to mass produce
Can change shape under pressure
Unweldable
Cannot withstand extremely high temperatures and melts at 326C

PTFE applications range from non-stick coating in kitchen cookware to high-tech medical and hospital uses including implants, surgical instruments and test equipment.

PTFE is highly heat resistant and resists friction against solids, which enables PTFE to be used as a component of gears, gaskets, side plates and bearings. It’s also used to make containers and pipes because it is anti-corrosive, and non-reactive. PTFE also has good electric insulation properties and is used in insulating cables and connector assemblies. This makes it ideal for coaxial cable, printed circuit boards and hookup wire.

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