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Ensinger PEI

Unitika U-100 Engineering Plastic
Categories: Polymer; Thermoplastic; Polyarylate

Material Notes: CAS No: 26590-50-1

Information provided by Unitika Ltd.

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Physical PropertiesMetricEnglishComments
Density 1.21 g/cc0.0437 lb/in³ASTM D792
Water Absorption 0.26 %
@Thickness 3.17 mm,
Time 86400 sec
0.26 %
@Thickness 0.125 in,
Time 24.0 hour
ASTM D570
Linear Mold Shrinkage, Flow 0.0080 cm/cm
@Thickness 3.00 mm
0.0080 in/in
@Thickness 0.118 in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 125125ASTM D785
Tensile Strength at Break 69.0 MPa10000 psiASTM D638
Elongation at Break 60 %60 %ASTM D638
Flexural Strength 84.0 MPa12200 psiASTM D790
Flexural Modulus 2.10 GPa305 ksiASTM D790
Compressive Yield Strength 84.0 MPa12200 psiASTM D695
Izod Impact, Notched 2.25 J/cm
@Thickness 3.17 mm
4.22 ft-lb/in
@Thickness 0.125 in
ASTM D256
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.00e+14 ohm-cm2.00e+14 ohm-cmASTM D257
Dielectric Constant 3.0
@Frequency 1e+6 Hz
3.0
@Frequency 1e+6 Hz
ASTM D150
Dielectric Strength 39.0 kV/mm991 kV/inASTM D149
Arc Resistance 130 sec130 secASTM D495
Comparative Tracking Index 220 V220 V
 
Thermal PropertiesMetricEnglishComments
CTE, linear 61.0 µm/m-°C33.9 µin/in-°FASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 175 °C347 °FASTM D648
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 87 %
@Thickness 3.00 mm
87 %
@Thickness 0.118 in
ASTM D1003
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 310 - 330 °C590 - 626 °F
Middle Barrel Temperature 340 - 360 °C644 - 680 °F
Front Barrel Temperature 350 - 370 °C662 - 698 °F
Nozzle Temperature 350 - 370 °C662 - 698 °F
Mold Temperature 120 - 140 °C248 - 284 °Factual surface temp
Drying Temperature 140 °C284 °F
Dry Time 6.00 - 24.0 hour6.00 - 24.0 hour
Back Pressure 0.490 - 1.47 MPa71.1 - 213 psigage pressure

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