Chemours Tefzel® 280 Resin Modified ETFE

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Chemours Tefzel® 280 Resin Modified ETFE
Categories:	Polymer; Thermoplastic; Fluoropolymer; ETFE/ECTFE
Material Notes:	Combines superior mechanical toughness with outstanding chemical inertness that approaches that of Teflon® fluoropolymers. Easy processibility, high-energy radiation resistance. Processed by conventional melt-extrusion and molding techniques. A higher molecular weight resin for applications requiring extra resistance to unusual environmental extremes, to stresses in processing such as lined chemical equipment, for parts with molded-in inserts, thick sections, or where in contact with solvents that affect crack resistance. Chemours was formed from former DuPont performance chemicals businesses, including DuPont Fluoroproducts, in 2015.
Key Words:	Ethylene Tetrafluoroethylene Copolymer
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Physical Properties	Metric	English	Comments

Specific Gravity	1.70 g/cc	1.70 g/cc	ASTM D792
Water Absorption	0.0070 %	0.0070 %	24 hours; ASTM D570

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	72	72	ASTM D2240
Tensile Strength, Ultimate	47.0 MPa	6820 psi	ASTM D3159
Elongation at Break	300 %	300 %	ASTM D3159
Flexural Modulus	1.20 GPa	174 ksi	ASTM D790
Compressive Strength	17.0 MPa	2470 psi	ASTM D695
Izod Impact, Notched	NB	NB	ASTM D256
	NB @Temperature -60.0 °C	NB @Temperature -76.0 °F
	NB @Temperature 121 °C	NB @Temperature 250 °F
	NB @Temperature 204 °C	NB @Temperature 399 °F
Coefficient of Friction	0.30 - 0.40	0.30 - 0.40	ASTM D1894

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+17 ohm-cm	>= 1.00e+17 ohm-cm	ASTM D257
Surface Resistivity per Square	>= 1.00e+15 ohm	>= 1.00e+15 ohm	ASTM D257
Dielectric Constant	2.28 @Frequency 1.36e+10 Hz	2.28 @Frequency 1.36e+10 Hz	ASTM D1531
	2.31 @Frequency 3.00e+9 Hz	2.31 @Frequency 3.00e+9 Hz	ASTM D1531
	2.33 @Frequency 1e+9 Hz	2.33 @Frequency 1e+9 Hz	ASTM D1531
	2.44 @Frequency 1e+8 Hz	2.44 @Frequency 1e+8 Hz	ASTM D1531
	2.5 - 2.6 @Frequency 1e+6 Hz	2.5 - 2.6 @Frequency 1e+6 Hz	ASTM D1531
	2.6 @Frequency 1000 Hz	2.6 @Frequency 1000 Hz	ASTM D1531
	2.6 @Frequency 10000 Hz	2.6 @Frequency 10000 Hz	ASTM D1531
	2.6 @Frequency 100000 Hz	2.6 @Frequency 100000 Hz	ASTM D1531
Dielectric Strength	15.0 kV/mm @Thickness 3.20 mm	381 kV/in @Thickness 0.126 in	ASTM D149
	70.0 kV/mm @Thickness 0.250 mm	1780 kV/in @Thickness 0.00984 in	ASTM D149
Dissipation Factor	0.00070 @Frequency 1000 Hz	0.00070 @Frequency 1000 Hz	ASTM D1531
	0.0011 @Frequency 10000 Hz	0.0011 @Frequency 10000 Hz	ASTM D1531
	0.0023 @Frequency 100000 Hz	0.0023 @Frequency 100000 Hz	ASTM D1531
	0.0072 @Frequency 1e+6 Hz	0.0072 @Frequency 1e+6 Hz	ASTM D1531
	0.0073 @Frequency 1.36e+10 Hz	0.0073 @Frequency 1.36e+10 Hz	ASTM D1531
	0.0119 @Frequency 3.00e+9 Hz	0.0119 @Frequency 3.00e+9 Hz	ASTM D1531
	0.0172 @Frequency 1e+9 Hz	0.0172 @Frequency 1e+9 Hz	ASTM D1531
	0.023 @Frequency 1e+8 Hz	0.023 @Frequency 1e+8 Hz	ASTM D1531
Arc Resistance	122 sec	122 sec	ASTM D495

Thermal Properties	Metric	English	Comments
Heat of Fusion	43.8 J/g	18.8 BTU/lb	DSC; ASTM D3417
CTE, linear	133 µm/m-°C @Temperature 0.000 - 100 °C	73.9 µin/in-°F @Temperature 32.0 - 212 °F	ASTM D695
	209 µm/m-°C @Temperature 100 - 150 °C	116 µin/in-°F @Temperature 212 - 302 °F	ASTM E831
	257 µm/m-°C @Temperature 150 - 200 °C	143 µin/in-°F @Temperature 302 - 392 °F	ASTM E831
Specific Heat Capacity	1.05 J/g-°C @Temperature 25.0 °C	0.250 BTU/lb-°F @Temperature 77.0 °F	DSC
	1.26 J/g-°C @Temperature 100 °C	0.300 BTU/lb-°F @Temperature 212 °F	DSC
	1.42 J/g-°C @Temperature 150 °C	0.340 BTU/lb-°F @Temperature 302 °F	DSC
	1.59 J/g-°C @Temperature 300 °C	0.380 BTU/lb-°F @Temperature 572 °F	DSC
Thermal Conductivity	0.240 W/m-K	1.67 BTU-in/hr-ft²-°F
Melting Point	255 - 280 °C	491 - 536 °F	ASTM D3418
Maximum Service Temperature, Air	150 °C	302 °F
Deflection Temperature at 0.46 MPa (66 psi)	81.0 °C	178 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	51.0 °C	124 °F	ASTM D648
Flammability, UL94	V-0	V-0
Oxygen Index	30 - 32 %	30 - 32 %	ASTM D2863

Optical Properties	Metric	English	Comments
Transmission, Visible	94 % @Thickness 0.0250 mm, Wavelength 400 nm	94 % @Thickness 0.000984 in, Wavelength 400 nm
	94 % @Thickness 0.0250 mm, Wavelength 500 nm	94 % @Thickness 0.000984 in, Wavelength 500 nm
	94 % @Thickness 0.0250 mm, Wavelength 600 nm	94 % @Thickness 0.000984 in, Wavelength 600 nm
	95 % @Thickness 0.0250 mm, Wavelength 700 nm	95 % @Thickness 0.000984 in, Wavelength 700 nm
	95 % @Thickness 0.0250 mm, Wavelength 800 nm	95 % @Thickness 0.000984 in, Wavelength 800 nm
UV Transmittance	91.5 % @Thickness 0.0250 mm, Wavelength 200 nm	91.5 % @Thickness 0.000984 in, Wavelength 200 nm
	92 % @Thickness 0.0250 mm, Wavelength 250 nm	92 % @Thickness 0.000984 in, Wavelength 250 nm
	92 % @Thickness 0.0250 mm, Wavelength 300 nm	92 % @Thickness 0.000984 in, Wavelength 300 nm
	93 % @Thickness 0.0250 mm, Wavelength 350 nm	93 % @Thickness 0.000984 in, Wavelength 350 nm

Processing Properties	Metric	English	Comments
Processing Temperature	302 - 323 °C	576 - 613 °F	Cure Temperature

Descriptive Properties
20% Hydrochloric Acid Transmission, g/100sq in.	<0.02
50% Sodium Hydroxide Transmission, g/100sq in.	<.02
Acetic Acid Transmission, g/100sq in.	0.41
Acetone Transmission, g/100sq in.	0.95
Acetophenone Transmission, g/100sq in.	0.5
Benzene Transmission, g/100sq in.	0.64
Carbon Tetrachloride Transmission, g/100sq in.	0.31
Chemical/Solvent Resistance	Excellent
Ethyl Acetate Transmission, g/100sq in.	0.76
Folding Endurance, # cycles, .18-.20 mm	10-27 E3
Heat of Combustion J/g	13700		ASTM D240
Hexane Transmission, g/100sq in.	0.56
Piperidine Transmission, g/100sq in.	0.04
Red Fuming Nitric Acid Transmission, g/100sq in.	7.5-1.4
Salt Spray Resistance on aluminum, Hours	1000
Sulfuric Acid Transmission, g/100sq in.	0.00001
Water Transmission, g/100sq in.	0.4
Weather Resistance	15		Years unaffected in 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.

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PDU929 / 33357

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