Chemours Teflon™ 669 X Fine Powder PTFE Resin for Paste Extrusion

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Chemours Teflon™ 669 X Fine Powder PTFE Resin for Paste Extrusion
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Extruded
Material Notes:	Teflon™ PTFE 669 X is a polytetrafluoroethylene fine powder resin used primarily for paste extrusion. Teflon™ PTFE 669 X offers the excellent combination of properties typical of Teflon™ fluoroplastic resins. Teflon™ PTFE 669 X is designed for processing at very low to medium reduction ratios (10:1–500:1). It is particularly suitable for production of pipe liners and general tubing. Teflon™ PTFE 669 X is mainly used for the production of pipe liners used in the chemical industry. It is also used for making tubing and unsintered tape for mechanical, chemical, and electrical applications. Information provided by Chemours.
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Physical Properties	Metric	English	Comments

Specific Gravity	2.167 g/cc	2.167 g/cc	ASTM D4895
Bulk Density	0.520 g/cc	0.0188 lb/in³	ASTM D4895
Water Absorption	<= 0.010 % @Time 86400 sec	<= 0.010 % @Time 24.0 hour	ASTM D570
Particle Size	450 µm	450 µm	Average; ASTM D4895

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	50 - 65	50 - 65	ASTM D2240
Tensile Strength	28.0 MPa	4060 psi	ASTM D1457
Elongation at Break	400 %	400 %	ASTM D1457
Flexural Modulus	0.496 GPa	71.9 ksi	ASTM D790
Flex Crack Resistance	>= 1.00e+6	>= 1.00e+6	Cycles MIT Folding Endurance; ASTM D2176
Izod Impact, Notched	1.87 J/cm	3.50 ft-lb/in	ASTM D256
Coefficient of Friction	0.050 - 0.10	0.050 - 0.10	ASTM D1894

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+18 ohm-cm	>= 1.00e+18 ohm-cm	ASTM D257
Surface Resistivity per Square	>= 1.00e+18 ohm	>= 1.00e+18 ohm	ASTM D257
Dielectric Constant	2.1 @Frequency 1e+6 Hz	2.1 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	18.0 kV/mm @Thickness 0.100 mm	457 kV/in @Thickness 0.00394 in	ASTM D149
Dissipation Factor	<= 0.00010 @Frequency 1e+6 Hz	<= 0.00010 @Frequency 1e+6 Hz	ASTM D150
Arc Resistance	>= 300 sec	>= 300 sec	ASTM D495

Thermal Properties	Metric	English	Comments
Melting Point	326 °C	619 °F	Second Peak; ASTM D4591
	327 °C	621 °F	ASTM D3418
	344 °C	651 °F	Initial Peak; ASTM D4591
Flammability, UL94	V-0	V-0
Oxygen Index	>= 95 %	>= 95 %	ASTM D2863

Descriptive Properties
Chemical/Solvent Resistance	Excellent		ASTM D543
Detergent Resistance (hours)	24		On grit blast aluminum
	264
	624		On aluminum
Extrusion Pressure (MPa)	7.5		ASTM D4895. @ RR= 100:1
Heat of Combustion	5.1 MJ/kg		ASTM D240
Salt Spray Resistance Coatings (hours)	192		ASTM B117. 5% NaCl at 35 °C (95 °F). On aluminum.
	744+		ASTM B117. 5% NaCl at 35 °C (95 °F).
Weather Resistance (years unaffected)	20		Florida Exposure

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PDU8828 / 268755

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