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Meldin Supplier

DuPont Mobility and Materials Vespel® SP-1 ISO Polyimide
Categories: Polymer; Thermoplastic; Polyimide, Thermoplastic

Material Notes: Parts and stock shapes from unfilled PI (polyimide) resin for high purity and high temperature environments

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 1.43 g/cc1.43 g/ccASTM D 792
Water Absorption 0.24 %0.24 %Immersion 24h; ASTM D 570
 0.72 %
@Temperature 50.0 °C
0.72 %
@Temperature 122 °F
Immersion 48h; ASTM D 570
Moisture Absorption at Equilibrium 1.0 - 1.3 %1.0 - 1.3 %50% RH; ASTM D 570
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell E 45 - 6045 - 60ASTM D 785
Tensile Strength, Ultimate  41.0 MPa
@Temperature 260 °C
5950 psi
@Temperature 500 °F
ASTM D 638
 86.0 MPa
@Temperature 23.0 °C
12500 psi
@Temperature 73.4 °F
ASTM D 638
Elongation at Break  6.0 %
@Temperature 260 °C
6.0 %
@Temperature 500 °F
ASTM D 638
 7.5 %
@Temperature 23.0 °C
7.5 %
@Temperature 73.4 °F
ASTM D 638
Flexural Strength  62.0 MPa
@Temperature 260 °C
8990 psi
@Temperature 500 °F
ASTM D 790
 110 MPa
@Temperature 23.0 °C
16000 psi
@Temperature 73.4 °F
ASTM D 790
Flexural Modulus  1.723 GPa
@Temperature 260 °C
249.9 ksi
@Temperature 500 °F
ASTM D 790
 3.101 GPa
@Temperature 23.0 °C
449.8 ksi
@Temperature 73.4 °F
ASTM D 790
Shear Strength 90.0 MPa13100 psiASTM D 732
Izod Impact, Notched 0.427 J/cm
@Temperature 23.0 °C
0.800 ft-lb/in
@Temperature 73.4 °F
ASTM D 256
Izod Impact, Unnotched 7.470 J/cm
@Temperature 23.0 °C
13.99 ft-lb/in
@Temperature 73.4 °F
ASTM D 4812
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 8.00e+16 ohm-cm8.00e+16 ohm-cmASTM D 257
Surface Resistance 4.00e+12 ohm4.00e+12 ohmASTM D 257
Dielectric Constant  3.66
@Frequency 1e+6 Hz,
Temperature 23.0 °C
3.66
@Frequency 1e+6 Hz,
Temperature 73.4 °F
ASTM D 150
 3.73
@Frequency 10000 Hz,
Temperature 23.0 °C
3.73
@Frequency 10000 Hz,
Temperature 73.4 °F
ASTM D 150
 3.74
@Frequency 100 Hz,
Temperature 23.0 °C
3.74
@Frequency 100 Hz,
Temperature 73.4 °F
ASTM D 150
Dielectric Strength 24.6 kV/mm
@Thickness 2.00 mm,
Temperature 23.0 °C
625 kV/in
@Thickness 0.0787 in,
Temperature 73.4 °F
Short time; ASTM D149
Dissipation Factor  0.0015
@Frequency 100 Hz
0.0015
@Frequency 100 Hz
ASTM D 150
 0.0050
@Frequency 1e+6 Hz
0.0050
@Frequency 1e+6 Hz
ASTM D 150
 0.0054
@Frequency 10000 Hz
0.0054
@Frequency 10000 Hz
ASTM D 150
Comparative Tracking Index 175 - 249 V175 - 249 VIEC 60112
 175 - 249 V
@Thickness 3.00 mm
175 - 249 V
@Thickness 0.118 in
UL 746A
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 360 °C680 °FASTM D 648
UL RTI, Electrical  130 °C
@Thickness 0.750 mm
266 °F
@Thickness 0.0295 in
UL 746B
 130 °C
@Thickness 1.70 mm
266 °F
@Thickness 0.0669 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 1.70 mm
266 °F
@Thickness 0.0669 in
UL 746B
 130 °C
@Thickness 0.750 mm
266 °F
@Thickness 0.0295 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 1.70 mm
266 °F
@Thickness 0.0669 in
UL 746B
 130 °C
@Thickness 3.00 mm
266 °F
@Thickness 0.118 in
UL 746B
Flammability, UL94  V-0
@Thickness 1.70 mm
V-0
@Thickness 0.0669 in
IEC 60695-11-10
 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
 V-0
@Thickness 1.70 mm
V-0
@Thickness 0.0669 in
UL94
 V-0
@Thickness 3.00 mm
V-0
@Thickness 0.118 in
IEC 60695-11-10
 V-0
@Thickness 3.00 mm
V-0
@Thickness 0.118 in
UL94
 5VA
@Thickness 0.750 mm
5VA
@Thickness 0.0295 in
IEC 60695-11-20
Oxygen Index 53 %53 %ASTM D 2863
 
Descriptive Properties
Contains Flame RetardantYes
Heat StabilizedYes
Polymer FamilyPolyimide
Polymer TypePI
Region AvailableAmericas
 Asia/Pacific
 Europe

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