Polytetraflouroethylene (PTFE) sealing solutions have been quite popular for several years now. PTFE is a fluorocarbon-based thermoplastic polymer, which exhibits excellent wear resistance, elasticity, and frictional properties. All these properties make it a popular choice for sealing materials. Nowadays, filled PTFE materials are available and they are used for building various types of sealing solutions. Carbon-filled PTFE is one such material that is chosen for its improved mechanical strength and several other properties.
SSP Seals specializes in the design and development of various types of polytetraflouroethylene seals. We work with different types of filled PTFE materials and carbon-filled PTFE is one of the most common materials we work with. The seals made of this material are especially used in applications where they may be exposed to high thermal conductivity than PTFE. The carbon filled PTFE is a less abrasive material than glass-filled PTFE, which also increases its utility in applications where abrasiveness can be a concern. There are several manufacturers dealing with PTFE sealing solutions, however, what makes us different is our ability to deliver customized solutions to meet your exact requirements.
Properties of PTFE Carbon
Carbon-filled PTFE is available in different compositions depending on the material to filler ratio. Of this, PTFE 75% and 25% carbon is the most common ratio. Generally, carbon filler ratios may vary from 0.2% to 40%. The material properties will vary according. The following are some common properties of PTFE carbon that make it a popular choice for sealing solutions.
PTFE Carbon Data Sheet
|Density/specific gravity||23°C||DIN 53479||kg/m³||2060||g/cm³||2,06|
|Hardness||23°C||ISO 868||Shore D||65 ±31||Shore D||65 ±3|
|Hardness||23°C||ISO 868||Shore D||65 ±3||Shore D||65 ±3|
|Ball Indentation Hardness||23°C||DIN 53456 H 135/30||MPa||35 ±5||Psi||5075 ±725|
|Tensile Strength||23°C||ASTM D 4745-11a||MPa||≥ 12||Psi||≥ 1740|
|Elongation At Break||23°C||ASTM D 4745-11a||%||≥ 45||%||≥ 45|
|Compressive Strength||23°C||DIN 53455||MPa||Psi|
|Thermal Conductivity||DIN 52612||J * 10³
m * h * K
|≥ 3,5||J * 10³
m * h * K
|Coefficient Of Thermal Expansion||25 °C - 200 °C||K
-1 * 10-5
-1 * 10-5
|Coefficient Of Friction *||23°C||µ||≥ 0,17||µ||≥ 0,17|
|Minimum Service Temperature||°C||-200||°F||-328|
|Maximum Service Temperature||°C||260||°F||500|
|Young's Modulus||23°C||DIN 53457||MPa||psi|
* Coefficient of friction dry dynamic Steel 16MnCr5 v=0,6m/s; p=0, 05 MPa; t=5h
Feel free to contact our team today to discuss your specific requirements for PTFE carbon sealing solutions. We will work closely with you to suggest the appropriate sealing solutions for your needs.