Carbon-filled PTFE Rod
PTFE rod filled with 25 % carbon, also known as carbon-filled Teflon. Compared with unfilled PTFE it deforms less under load and resists wear better; it is used for machining bearings, piston rings and sealing rings.
Material and sizes
Carbon-filled PTFE
PTFE filled with 25 % carbon; black in colour. Compared with unfilled PTFE, the carbon filler reduces deformation under load (cold flow) and increases compressive strength and wear resistance. Its thermal and electrical conductivity are higher, so it dissipates static and is not used for electrical insulation. It largely retains PTFE’s chemical resistance and its service range of −200 °C to +260 °C, and is preferred for water-lubricated or dry-running bearings and piston rings.
Teflon™ is a registered trademark of The Chemours Company FC, LLC.
- FILLER
- 25 % carbon · black
- SIZE
- Diameter and length to order
- CONTINUOUS SERVICE TEMP.
- 260 °C
- ORDERING
- Cut to length, minimum order 5 kg
For large-quantity orders, other cut sizes are possible.
Technical data sheets and material certificates are available on request.
Carbon-filled PTFE rod weight calculator
Calculate the weight from the size, or the length and number of pieces needed for a target weight. Your selections are added to the quote message automatically.
Size: Ø50 × 1000 mm, quantity: 1 (theoretical ~4.12 kg)
For other plastic sizes, weight-per-metre tables and densities, see the Plastic weight calculator →
Applications
- Water-lubricated or dry-running bearings
- Piston and compressor rings
- Sealing and wear rings
- Pump and valve parts
Frequently asked questions
What is the difference between carbon-filled and white (unfilled) PTFE?
The carbon filler reduces PTFE’s tendency to deform under load (cold flow) and increases its compressive strength, wear resistance and heat conduction. Unfilled PTFE remains the choice where electrical insulation or the lowest possible friction is needed. Carbon-filled PTFE conducts electricity, so it is not used for insulating parts.
Where is carbon-filled PTFE used?
It is preferred where load and friction act together: water-lubricated or dry-running bearings, piston and compressor rings, pump and valve parts, and wear rings.
Why can the invoiced weight differ from the calculated weight?
The calculator gives the theoretical weight. The actual weight varies with dimensional tolerances and cutting allowance; we invoice on the actual weight as weighed.
What information should I send for a quote?
We only need the size (diameter × length), quantity and delivery location. If you fill in the calculator above, these details are added to the WhatsApp message automatically.