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Ensinger PEI

Idemitsu Kosan Xarec® EA 522 SPS, 22% Glass Filled
Categories: Polymer; Thermoplastic; Polystyrene (PS); Syndiotactic Polystyrene (SPS); Syndiotactic Polystyrene (SPS) with Glass or Carbon Fiber

Material Notes: Crystalline Polymer, Glass Filled, Ignition Resistant, Impact Modified. Used in Electronic and Electrical applications

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Physical PropertiesMetricEnglishComments
Density 1.32 g/cc0.0477 lb/in³
Filler Content 22 %22 %
Moisture Absorption 0.010 %0.010 %24 hrs., 50% RH
Linear Mold Shrinkage, Flow 0.0020 - 0.0040 cm/cm0.0020 - 0.0040 in/in
Linear Mold Shrinkage, Transverse 0.0050 - 0.0070 cm/cm0.0050 - 0.0070 in/in
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 100 MPa14500 psi
Elongation at Break 2.3 %2.3 %
Tensile Modulus 8.00 GPa1160 ksi
Flexural Yield Strength 155 MPa22500 psi
Flexural Modulus 7.50 GPa1090 ksi
Izod Impact, Notched (ISO) 11.0 kJ/m²5.23 ft-lb/in²
Izod Impact, Unnotched (ISO) 34.0 kJ/m²16.2 ft-lb/in²
Charpy Impact Unnotched 3.90 J/cm²18.6 ft-lb/in²
Charpy Impact, Notched 1.20 J/cm²5.71 ft-lb/in²
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00e+16 ohm-cm1.00e+16 ohm-cm
Dielectric Constant 3.03.0
Dielectric Strength 35.0 kV/mm889 kV/inASTM D145
Dissipation Factor 0.00100.0010IEC 60250
Arc Resistance 120 - 180 sec120 - 180 secASTM D495
Comparative Tracking Index 400 - 600 V400 - 600 VIEC 60112
Hot Wire Ignition, HWI 60 - 120 sec
@Thickness 1.50 mm
60 - 120 sec
@Thickness 0.0591 in
UL 746A
High Amp Arc Ignition, HAI >= 120 arcs
@Thickness 1.50 mm
>= 120 arcs
@Thickness 0.0591 in
UL 746A
High Voltage Arc-Tracking Rate, HVTR 0.000 - 10.0 mm/min0.000 - 0.394 in/minUL746A
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 24.0 µm/m-°C
@Temperature -30.0 - 30.0 °C
13.3 µin/in-°F
@Temperature -22.0 - 86.0 °F
CTE, linear, Transverse to Flow 53.0 µm/m-°C29.4 µin/in-°F
Deflection Temperature at 0.46 MPa (66 psi) 265 °C509 °F
Deflection Temperature at 1.8 MPa (264 psi) 230 °C446 °F
UL RTI, Electrical 125 °C257 °FUL746B
UL RTI, Mechanical with Impact 120 °C248 °FUL746B
UL RTI, Mechanical without Impact 120 °C248 °FUL746B
Flammability, UL94  V-0
@Thickness 1.50 mm
V-0
@Thickness 0.0591 in
 5VA
@Thickness 2.30 mm
5VA
@Thickness 0.0906 in
 
Processing PropertiesMetricEnglishComments
Melt Temperature 280 - 310 °C536 - 590 °F
Mold Temperature 50.0 - 80.0 °C122 - 176 °F
 130 - 155 °C266 - 311 °FFor optimal surface finish
 
Descriptive Properties
CommentsImproved tensile elongation

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