PTFETeflon (polytetrafluoroethylene)
Teflon (PTFE) is the most representative fluororesin, accounting for 60% of total fluororesin demand. It combines outstanding heat resistance, cold resistance, chemical resistance, low friction, non-stick behavior and electrical properties. It is mainly used where several of these are needed at once, such as heat resistance with electrical properties, chemical resistance with heat resistance, or non-stick behavior with heat resistance; typical uses are in the chemical and semiconductor industries, where chemical and solvent resistance is essential.
- Continuous service temp.
- 260℃
- Sheet thickness
- 5~250mm
- Rod diameter
- Φ5~250mm
Features
Continuous service temperature 260℃
Suitable for continuous use at high temperatures.
Low friction
It has the lowest coefficient of friction of any solid material.
Exceptional chemical resistance
Unaffected by almost all chemicals.
Electrical properties
A low dielectric constant and low dissipation factor give it excellent electrical properties.
Non-absorbent
Water absorption and permeability are nearly zero.
Weatherability and non-stick behavior
Excellent weather resistance and non-stick properties.
Properties
| Property | Unit | Test method | Value |
|---|---|---|---|
| Continuous service temperature | ℃ | — | 260 |
| Density | g/cm³ | — | Pending |
| Tensile strength | MPa | — | Pending |
| Flexural modulus | MPa | — | Pending |
| Heat deflection temperature | ℃ | — | Pending |
| Water absorption | % | — | Pending |
Typical values; they vary by grade and form. Rows marked “Pending” are still being verified — ask for them with your quote request if you need them.
Sizes
PTFE sheet
- 5
- 6
- 8
- 10
- 12
- 15
- 18
- 20
- 25
- 30
- 35
- 40
- 45
- 50
- 55
- 60
- 65
- 70
- 75
- 80
- 85
- 90
- 95
- 100
- 105
- 110
- 120
- 130
- 140
- 150
- 160
- 170
- 180
- 190
- 200
- 230
- 240
- 250
PTFE rod
- 5
- 6
- 8
- 10
- 12
- 15
- 18
- 20
- 25
- 30
- 35
- 40
- 45
- 50
- 55
- 60
- 65
- 70
- 75
- 80
- 85
- 90
- 95
- 100
- 105
- 110
- 120
- 130
- 140
- 150
- 160
- 170
- 180
- 190
- 200
- 230
- 240
- 250
Applications
- Semiconductor equipment parts (valves, cocks, joints, packings, bellows)
- Gaskets, tubes, linings and filters for semiconductor equipment
- Sliding parts for machinery and vehicles (bearings, sliding guide pipes)
- Automotive parts (fuel caps, radiator drain cocks, remote-control door mirrors)
- Electrical insulation (tapes, films, connectors, terminals, wire coverings)
Frequently asked questions
What temperature can PTFE withstand?
Its continuous service temperature is 260℃.
What sizes of PTFE sheet and rod are available?
Both sheet thickness and rod diameter come in 5, 6, 8, 10, 12, 15, 18, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 230, 240, 250 mm, in white.
Which chemicals can PTFE handle?
It is unaffected by almost all chemicals, so it is mainly used in the chemical industry and semiconductor equipment where chemical and solvent resistance is essential.
Does PTFE absorb water?
Its water absorption and permeability are nearly zero.
