PTFE Machined Parts
PTFE Milling PTFE Turning PTFE Routing
PTFE Machining -SENTINEL PLASTICS machines bespoke PTFE machining Parts to customer specifications, samples or drawings. Our plastic CNC machine shop specifically caters for industrial plastic materials such as PTFE.
PTFE Material
PTFE Material or Teflon®, is Polytetrafluoroethylene which is a synthetic fluoropolymer of tetrafluoroethylene. PTFE is widely used in numerous applications.
PTFE in Brief
• High chemical resistance.
• Resistance to both low and high temperatures.
• Low flammability.
• Low friction coefficient.
• High resistance to UV.
• FDA Approved.
• Good electrical properties.
Types of PTFE
Virgin PTFE
PTFE material is highly resistant to heat, as well as attack from most chemicals. The electrical properties are excellent. Though it’s high impact strength, its resistance to wear, durability and creep resistance are low as compared to alternative engineering grade thermoplastics. Like many other plastics it properties are often improved by adding fillers like glass fibre, carbon, and/or graphite.
25% Glass Filled PTFE
25% Glass filled PTFE is used to improve the creep resistance of PTFE over all temperature ranges, while still allowing some compression required for sealing in both gaskets and valves. Improved wear behaviour is exhibited, while there is little effect on the electrical properties, as glass fibre is an insulator. 25% Glass has an exceptional resistance to water. Still giving excellent chemical stability, PTFE +25% GF has better thermal conductivity and coefficient of friction when combined with MoS2 or graphite. (Information from Plastim Ltd)
25% Carbon Filled PTFE
PTFE carbon filled has better creep and wear resistance compared to standard PTFE sheet. These properties are improved with the addition of a carbon filler. This filler improves dimensional stability, raises the heat deflection temperature, improves creep resistance and the dynamic bearing performance. Based product.
This grade provides 3½ times higher thermal conductivity than non reinforced PTFE — dissipating heat from the bearing surface faster. Carbon-filled PTFE is black in colour. (Information from Plastim Ltd)
A Company that Machines PTFE – Bespoke Machined Parts
PTFE Machined Parts are made in house on CNC controlled machines.
These are just some examples of parts we machine from PTFE:
PTFE Pump housings, PTFE valve seats, PTFE gaskets, PTFE roller coverings, PTFE shaft bearings, Teflon filter housings, PTFE etching plates, PTFE shaft seals, Teflon slide runners, chemical engineering, PTFE machine parts, transport and conveyor technology, pump and instrument construction, electrical industry, electronics, laser technology, fume purification, pure water production, cryogenics, filter technology, food and medical technology.
PTFE Turning
Using the latest Precision Lathes and technology, CNC PTFE Turning, Sentinel Plastics Ltd can produce large or small batch plastic turned parts from all the various types of industrial plastics.
Producing Precision PTFE Turned Parts to high quality standards, in many variant forms. One off prototyping and higher production levels are cost effectively produced to customer specification.
PTFE Milling 
Using the latest Precision CNC Milling Machine centres, CNC PTFE Milling. Sentinel Plastics Ltd can produce large or small batch plastic milled parts from all the various types of industrial plastics.
Producing Precision PTFE milling Parts to high quality standards, in many variant forms. One off prototyping and higher production levels are cost effectively produced to customer specification.