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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 PropertiesOriginal ValueComments
Specific Gravity 1.56 g/ccASTM D 792
Filler Content 40 %
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 26.0 MPa
@Temperature 260 °C		ASTM D 638
 45.0 MPa
@Temperature 23.0 °C		ASTM D 638
Elongation at Break 2.5 %
@Temperature 23.0 °C		ASTM D 638
 2.5 %
@Temperature 260 °C		ASTM D 638
Flexural Strength 38.0 MPa
@Temperature 260 °C		ASTM D 790
 62.0 MPa
@Temperature 23.0 °C		ASTM D 790
Flexural Modulus 2756 MPa
@Temperature 260 °C		ASTM D 790
 4823 MPa
@Temperature 23.0 °C		ASTM D 790
Izod Impact, Notched 0.304 J/cm
@Temperature 23.0 °C		ASTM D 256
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 9.00e+15 ohm-cmASTM D 257
Surface Resistance 4.00e+12 ohmASTM D 257
Dielectric Constant 15.08
@Frequency 1e+6 Hz,
Temperature 23.0 °C		ASTM D 150
 15.35
@Frequency 10000 Hz,
Temperature 23.0 °C		ASTM D 150
 15.37
@Frequency 100 Hz,
Temperature 23.0 °C		ASTM D 150
Dielectric Strength 6.00 kV/mm
@Thickness 2.00 mm,
Temperature 23.0 °C		Short time; ASTM D149
Dissipation Factor 0.0013
@Frequency 100 Hz		ASTM D 150
 0.0041
@Frequency 10000 Hz		ASTM D 150
 0.0065
@Frequency 1e+6 Hz		ASTM D 150
Comparative Tracking Index 250 - 399 VIEC 60112
 250 - 399 V
@Thickness 3.00 mm		UL 746A
 
Thermal PropertiesOriginal ValueComments
UL RTI, Electrical 130 °C
@Thickness 0.750 mm		UL 746B
 130 °C
@Thickness 1.60 mm		UL 746B
 130 °C
@Thickness 3.00 mm		UL 746B
UL RTI, Mechanical with Impact 130 °C
@Thickness 0.750 mm		UL 746B
 130 °C
@Thickness 1.60 mm		UL 746B
 130 °C
@Thickness 3.00 mm		UL 746B
UL RTI, Mechanical without Impact 130 °C
@Thickness 0.750 mm		UL 746B
 130 °C
@Thickness 1.60 mm		UL 746B
 130 °C
@Thickness 3.00 mm		UL 746B
Flammability, UL94 V-0
@Thickness 0.750 mm		IEC 60695-11-10
 V-0
@Thickness 3.00 mm		UL94
 V-0
@Thickness 1.60 mm		IEC 60695-11-10
 V-0
@Thickness 1.60 mm		UL94
 V-0
@Thickness 0.750 mm		UL94
 V-0
@Thickness 3.00 mm		IEC 60695-11-10
 5VA
@Thickness 3.00 mm		IEC 60695-11-10
 5VA
@Thickness 3.00 mm		UL94
 5VA
@Thickness 0.750 mm		IEC 60695-11-20
 5VA
@Thickness 0.750 mm		IEC 60695-11-10
 5VA
@Thickness 1.60 mm		IEC 60695-11-10
 5VA
@Thickness 0.750 mm		UL94
 5VA
@Thickness 1.60 mm		UL94
 
Descriptive Properties
Contains Flame RetardantYes
FillerGraphite Powder
Heat StabilizedYes
Polymer FamilyPolyimide
Polymer TypePI
Region AvailableAmericas
 Asia/Pacific
 Europe

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PDTA7757 / 89869

Specialty Compounds RTP Company




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