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Ensinger PEI

Unitika PT-3020
Categories: Polymer; Thermoplastic; Polyarylate

Material Notes: Characteristics:
  • Dimensional accuracy (planarity)
  • Heat resistance
  • Creep resistance and elasticity
  • Rigidity

Information provided by Unitika Ltd.

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Physical PropertiesMetricEnglishComments
Density 1.36 g/cc0.0491 lb/in³ASTM D792
Water Absorption 0.12 %
@Thickness 3.17 mm,
Time 86400 sec
0.12 %
@Thickness 0.125 in,
Time 24.0 hour
ASTM D570
Linear Mold Shrinkage, Flow 0.0030 - 0.0040 cm/cm
@Thickness 3.00 mm
0.0030 - 0.0040 in/in
@Thickness 0.118 in
Linear Mold Shrinkage, Transverse 0.0040 - 0.0050 cm/cm
@Thickness 3.00 mm
0.0040 - 0.0050 in/in
@Thickness 0.118 in
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 67.0 MPa9720 psiASTM D638
Elongation at Break 6.0 %6.0 %ASTM D638
Flexural Strength 111 MPa16100 psiASTM D790
Flexural Modulus 3.80 GPa551 ksiASTM D790
 
Thermal PropertiesMetricEnglishComments
CTE, linear 35.0 - 40.0 µm/m-°C19.4 - 22.2 µin/in-°FASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 165 °C329 °FASTM D648
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 290 - 310 °C554 - 590 °F
Middle Barrel Temperature 320 - 340 °C608 - 644 °F
Front Barrel Temperature 330 - 350 °C626 - 662 °F
Nozzle Temperature 330 - 350 °C626 - 662 °F
Mold Temperature 110 - 130 °C230 - 266 °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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