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Meldin Supplier

DuPont Mobility and Materials Vespel® SP-221 DF Polyimide
Categories: Polymer; Thermoplastic; Polyimide, Thermoplastic; Thermoplastic Polyimide, Graphite Filled

Material Notes: Parts from graphite filled PI (polyimide) with Teflon for highly specialized applications against soft metals in "no-lube" conditions.

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 1.60 g/cc1.60 g/ccASTM D 792
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 39.0 MPa
@Temperature 23.0 °C
5660 psi
@Temperature 73.4 °F
ASTM D 638
Elongation at Break 3.5 %
@Temperature 23.0 °C
3.5 %
@Temperature 73.4 °F
ASTM D 638
Flexural Strength  31.0 MPa
@Temperature 260 °C
4500 psi
@Temperature 500 °F
ASTM D 790
 55.0 MPa
@Temperature 23.0 °C
7980 psi
@Temperature 73.4 °F
ASTM D 790
Flexural Modulus  2.205 GPa
@Temperature 260 °C
319.8 ksi
@Temperature 500 °F
ASTM D 790
 3.445 GPa
@Temperature 23.0 °C
499.7 ksi
@Temperature 73.4 °F
ASTM D 790
Compressive Strength 112 MPa16200 psiASTM D 695
 
Thermal PropertiesMetricEnglishComments
UL RTI, Electrical 50.0 °C
@Thickness 0.750 mm
122 °F
@Thickness 0.0295 in
UL 746B
UL RTI, Mechanical with Impact 50.0 °C
@Thickness 0.750 mm
122 °F
@Thickness 0.0295 in
UL 746B
UL RTI, Mechanical without Impact 50.0 °C
@Thickness 0.750 mm
122 °F
@Thickness 0.0295 in
UL 746B
Flammability, UL94  V-0
@Thickness 0.750 mm
V-0
@Thickness 0.0295 in
IEC 60695-11-10
 V-0
@Thickness 0.750 mm
V-0
@Thickness 0.0295 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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PDTA7759 / 89871

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