15% Carbon Filled PTFE
15% Carbon Filled PTFE sheets, rods and tubes. The carbon added with PTFE are carbon powder and carbon fibre.
Welcome to Learning About 15% Carbon-Filled PTFE
15% Carbon Filled PTFE material is a high-performance plastic composite that blends virgin PTFE with carbon fibres or powder. It offers higher compressive strength, superior wear life, and better dimensional stability than pure PTFE while retaining excellent chemical resistance.
The most common carbon percentages in PTFE are 10%, 15%, 20%, and 25%. Carbon fibre raises hardness, lowers creep, and increases compressive and flexural modulus. The advantage of using carbon fibre instead of glass fibre is that it is inert to HF and strong bases.
Advantages
15% Carbon Filled PTFE material is developed to provide a PTFE-based material with improved mechanical strength. It has excellent mechanical and wear properties, retains excellent frictional properties and is an excellent choice for seals and rings in dynamic and high-pressure applications.
Applications
15% carbon-filled PTFE material is ideal for seal components for static and dynamic applications and against chromium plating and steel. It is also suitable for piston rings, compression rings operating in non-lubricated environments, and high-pressure hydraulic seals.
Physical Properties of Carbon Filled PTFE
| Properties | Test Methods | Unit | 10% Carbon | 15% Carbon | 25% Carbon |
|---|---|---|---|---|---|
| Density | ASTM D792 | g/cm3 | 2.18 | 2.15 | 2.12 |
| Hardness Shore D | ASTM D2240 | Sh.D | 60 | 62 | 65 |
| Tensile strength | ASTM D638 | mpa | 21 | 19 | 16 |
| Elongation at break 23°C | ASTM D4894 | % | 230 | 200 | 150 |
| Coefficient of static friction | ASTM D1894 | - | 0.12 | 0.15 | 0.25 |
| Dielectric strength | ASTM D149 | Kv/mm | - | - | - |
| Max water absorption | ASTM D570 | % | 0 | 0 | 0 |
| Working temperature | - | °C | -220 to 260 | -220 to 260 | -220 to 260 |
