Polikim EFALON® K-35 PTFE, 35% Carbon Filled

Category	Polymer , Thermoplastic , Fluoropolymer , PTFE , Polytetrafluoroethylene (PTFE), Carbon Fiber Filled
Manufacturer	Polikim Polimer ve Kimya Sanay
Trade Name	EFALON®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Polikim EFALON® K-35 PTFE, 35% Carbon Filled.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

K25 and K35 have less thermal expansion, higher wear resistance, less deformation under load properties compared to virgin Efalon® (PTFE). Applications: Bearings, piston rings, gaskets, seal rings.Information provided by Polikim Polimer.

Physical Properties	Metric	English	Comments
Density	2.00 - 2.10 g/cc	0.0723 - 0.0759 lb/in³	ASTM D792
Deformation	0.30 - 1.8 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	0.30 - 1.8 % @Temperature 73.4 °F, Time 24.0 hour, Pressure 1990 psi	permanent; ASTM D621
	1.3 - 1.5 % @Temperature 150 °C, Time 86400 sec, Pressure 0.981 MPa	1.3 - 1.5 % @Temperature 302 °F, Time 24.0 hour, Pressure 142 psi	total
	2.3 - 4.3 % @Temperature 23.0 °C, Time 86400 sec, Pressure 13.7 MPa	2.3 - 4.3 % @Temperature 73.4 °F, Time 24.0 hour, Pressure 1990 psi	total; ASTM D621
	5.0 - 6.0 % @Temperature 150 °C, Time 86400 sec, Pressure 4.90 MPa	5.0 - 6.0 % @Temperature 302 °F, Time 24.0 hour, Pressure 711 psi	total

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	66 - 70	66 - 70	ASTM D2240
Tensile Strength, Ultimate	10.8 - 15.7 MPa	1560 - 2280 psi	ASTM D638
Elongation at Break	55 - 90 %	55 - 90 %	ASTM D638
Compressive Strength	9.32 - 11.8 MPa	1350 - 1710 psi	1% Deformation; ASTM D695
Coefficient of Friction	0.16	0.16
Coefficient of Friction, Static	0.13	0.13
Limiting Pressure Velocity	0.00360 - 0.00376 MPa-m/sec	103 - 107 psi-ft/min	3 m/min
	0.00409 - 0.00654 MPa-m/sec	117 - 187 psi-ft/min	30 m/min
	0.004905 - 0.008175 MPa-m/sec	140.0 - 233.4 psi-ft/min	300 m/min

Thermal Properties	Metric	English	Comments
CTE, linear	75.0 - 80.0 µm/m-°C @Temperature 25.0 - 100 °C	41.7 - 44.4 µin/in-°F @Temperature 77.0 - 212 °F	ASTM D696
	90.0 - 110 µm/m-°C @Temperature 25.0 - 200 °C	50.0 - 61.1 µin/in-°F @Temperature 77.0 - 392 °F	ASTM D696
	120 - 140 µm/m-°C @Temperature 25.0 - 300 °C	66.7 - 77.8 µin/in-°F @Temperature 77.0 - 572 °F	ASTM D696
Thermal Conductivity	0.795 - 0.879 W/m-K	5.51 - 6.09 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	270 °C	518 °F	continuous
Minimum Service Temperature, Air	-260 °C	-436 °F

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 100 ohm-cm	>= 100 ohm-cm	ASTM D257
Surface Resistance	>= 10000 ohm	>= 10000 ohm	50% rel. humidity; ASTM D257

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