PTFE carbon 25% 60 Shore D Compound
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PTFE Carbon 25% 60 Shore D Compound

Self-Lubricating & Conductive PTFE for Dynamic and High-Wear Sealing

PTFE Carbon 25% (60 Shore D, black) is a high-performance carbon-filled PTFE compound, designed for dynamic sealing applications requiring improved wear resistance, low friction, and moderate electrical conductivity.

The 25% finely dispersed carbon particles enhance PTFE’s natural properties by significantly improving load-carrying capacity, thermal conductivity, and dimensional stability, while reducing creep and cold flow under pressure. This compound is ideal for rotary seals, reciprocating components, and antistatic environments.

Technical Specifications

PTFE carbon 25% 62 Shore D black

Mechanical

Mechanical propertiesStandardUnitData-Moulded
DensityASTM D792g/cm³2,05-2,11
Hardness-Shore DASTM D2240/≥ 62
Tensile Strength-CD*ISO 527N/m㎡     ≥ 14
Elongation at Break-CD*ISO 527%≥ 75
Compressive Strength at 1% Deformation -CD*ASTM D695      N/m㎡  ≥7

Deformation under Load at Room Temperature

After 24 Hours at 13,7 N/m㎡- CD*

ASTM D621%≤7

Permanent Deformation Under Load After 24

Hours of Rest at Room Temperature -CD*

ASTM D621%≤ 5

Thermal

Thermal propertiesStandardUnitData-Moulded    
Service Temperature (Min-Max)/℃-200/+260
Thermal Expansion Coefficient (Linear) 25 -100℃             

Similar to

ASTM D696            

10-5

(mm/mm)/℃

10 -12

Electrical

Electrical properties                                            StandardUnitData-Moulded 
Volume ResistivityASTM D257    Ω*cm 

104 

Surface ResistivityASTM D257Ω

104

Tribological

Tribological properties                                  Standard               Unit         Data-Moulded           
Dynamic Coefficient of Friction                                                     

ASTM D1894

ASTM D3702

 /

0,12-0,25
Wear Factor K DIN EN ISO 62  /

 

0,01-0,02

*CD=Cross Direction

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