Isoflon Virgin PTFE Polytetrafluoroethylene

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Isoflon Virgin PTFE Polytetrafluoroethylene
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Molded
Material Notes:	Properties/Improved compression and wear resistance Excellent chemical stability Better thermal conductivity Excellent resistance to continuous service temperatures up to 260°C, and, for limited periods, even to higher temperatures Chemical resistance: PTFE possesses a high inertness towards nearly all known chemicals. It is only attacked by elemental alkali metals, chlorine trifluoride and elemental fluorine at high temperatures and pressures. Solvents resistance: PTFE is insoluble in all solvents up to temperatures as high as 300°C. Certain highly fluorinated oils only swell and dissolve PTFE close to the crystalline melting point. Information provided by Isoflon.
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Physical Properties	Original Value	Comments

Specific Gravity	2.13 - 2.18 g/cc	ISO 1183
Water Absorption	0.0010 %	ASTM D570
Deformation	6.0 - 7.5 % @Time 86400 sec	After relaxation period; ASTM D695
	10 - 13 % @Time 86400 sec, Pressure 13.7 MPa	Under load; ASTM D695

Mechanical Properties	Original Value	Comments
Hardness, Shore D	54 - 60	ISO 868
Tensile Strength	20.0 - 30.0 MPa	ISO 527
Elongation at Break	200 - 300 %	ISO 527
Flexural Modulus	600 - 700 MPa
Coefficient of Friction, Dynamic	0.070	ASTM D1894

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+18 ohm-cm	ASTM D 257
Dielectric Constant	2.1 @Frequency 6.00e+7 - 2.00e+9 Hz	ASTM D150
Dielectric Strength	20.0 - 70.0 kV/mm	ASTM D149

Thermal Properties	Original Value	Comments
Melting Point	325 - 335 °C
Maximum Service Temperature, Air	260 °C	Continuous
Minimum Service Temperature, Air	-200 °C	Continuous
Flammability, UL94	V-0

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PISOFL957 / 123345

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