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Meldin Supplier

DuPont Mobility and Materials Vespel® SP-22 DF Polyimide
Categories: Polymer; Thermoplastic; Polyimide, Thermoplastic; Thermoplastic Polyimide, Graphite Filled
Material Notes: Parts from nominal 40% (wt) graphite filled PI (polyimide) for low coefficient of thermal expansion and high creep resistance.

Information provided by DuPont. This product line has remained with DuPont after the DuPont-Dow merger.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.56 g/cc1.56 g/ccASTM D 792
Filler Content 40 %40 %
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate  26.0 MPa
@Temperature 260 °C		3770 psi
@Temperature 500 °F		ASTM D 638
 45.0 MPa
@Temperature 23.0 °C		6530 psi
@Temperature 73.4 °F		ASTM D 638
Elongation at Break  2.5 %
@Temperature 23.0 °C		2.5 %
@Temperature 73.4 °F		ASTM D 638
 2.5 %
@Temperature 260 °C		2.5 %
@Temperature 500 °F		ASTM D 638
Flexural Strength  38.0 MPa
@Temperature 260 °C		5510 psi
@Temperature 500 °F		ASTM D 790
 62.0 MPa
@Temperature 23.0 °C		8990 psi
@Temperature 73.4 °F		ASTM D 790
Flexural Modulus  2.756 GPa
@Temperature 260 °C		399.7 ksi
@Temperature 500 °F		ASTM D 790
 4.823 GPa
@Temperature 23.0 °C		699.5 ksi
@Temperature 73.4 °F		ASTM D 790
Izod Impact, Notched 0.304 J/cm
@Temperature 23.0 °C		0.570 ft-lb/in
@Temperature 73.4 °F		ASTM D 256
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 9.00e+15 ohm-cm9.00e+15 ohm-cmASTM D 257
Surface Resistance 4.00e+12 ohm4.00e+12 ohmASTM D 257
Dielectric Constant  15.08
@Frequency 1e+6 Hz,
Temperature 23.0 °C		15.08
@Frequency 1e+6 Hz,
Temperature 73.4 °F		ASTM D 150
 15.35
@Frequency 10000 Hz,
Temperature 23.0 °C		15.35
@Frequency 10000 Hz,
Temperature 73.4 °F		ASTM D 150
 15.37
@Frequency 100 Hz,
Temperature 23.0 °C		15.37
@Frequency 100 Hz,
Temperature 73.4 °F		ASTM D 150
Dielectric Strength 6.00 kV/mm
@Thickness 2.00 mm,
Temperature 23.0 °C		152 kV/in
@Thickness 0.0787 in,
Temperature 73.4 °F		Short time; ASTM D149
Dissipation Factor  0.0013
@Frequency 100 Hz		0.0013
@Frequency 100 Hz		ASTM D 150
 0.0041
@Frequency 10000 Hz		0.0041
@Frequency 10000 Hz		ASTM D 150
 0.0065
@Frequency 1e+6 Hz		0.0065
@Frequency 1e+6 Hz		ASTM D 150
Comparative Tracking Index 250 - 399 V250 - 399 VIEC 60112
 250 - 399 V
@Thickness 3.00 mm		250 - 399 V
@Thickness 0.118 in		UL 746A
 
Thermal PropertiesMetricEnglishComments
UL RTI, Electrical  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
UL RTI, Mechanical with Impact  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
UL RTI, Mechanical without Impact  130 °C
@Thickness 0.750 mm		266 °F
@Thickness 0.0295 in		UL 746B
 130 °C
@Thickness 1.60 mm		266 °F
@Thickness 0.0630 in		UL 746B
 130 °C
@Thickness 3.00 mm		266 °F
@Thickness 0.118 in		UL 746B
Flammability, UL94  V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		IEC 60695-11-10
 V-0
@Thickness 3.00 mm		V-0
@Thickness 0.118 in		UL94
 V-0
@Thickness 1.60 mm		V-0
@Thickness 0.0630 in		IEC 60695-11-10
 V-0
@Thickness 1.60 mm		V-0
@Thickness 0.0630 in		UL94
 V-0
@Thickness 0.750 mm		V-0
@Thickness 0.0295 in		UL94
 V-0
@Thickness 3.00 mm		V-0
@Thickness 0.118 in		IEC 60695-11-10
 5VA
@Thickness 3.00 mm		5VA
@Thickness 0.118 in		IEC 60695-11-10
 5VA
@Thickness 3.00 mm		5VA
@Thickness 0.118 in		UL94
 5VA
@Thickness 0.750 mm		5VA
@Thickness 0.0295 in		IEC 60695-11-20
 5VA
@Thickness 0.750 mm		5VA
@Thickness 0.0295 in		IEC 60695-11-10
 5VA
@Thickness 1.60 mm		5VA
@Thickness 0.0630 in		IEC 60695-11-10
 5VA
@Thickness 0.750 mm		5VA
@Thickness 0.0295 in		UL94
 5VA
@Thickness 1.60 mm		5VA
@Thickness 0.0630 in		UL94
 
Descriptive Properties
Contains Flame RetardantYes
FillerGraphite Powder
Heat StabilizedYes
Polymer FamilyPolyimide
Polymer TypePI
Region AvailableAmericas
 Asia/Pacific
 Europe

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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