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Ensinger PEI

MRC Polymers NAXALOY™ 780-11G PC + PBT Blend  (discontinued **)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate/Polybutylene Terephthalate (PBT) Blend, Unreinforced; Polyester, TP; Polybutylene Terephthalate (PBT)

Material Notes: Mechanical properties measured on 1/8 in. (3.2 mm) samples.

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Physical PropertiesMetricEnglishComments
Density 1.27 g/cc0.0459 lb/in³ASTM D792
Linear Mold Shrinkage, Flow 0.0040 - 0.0060 cm/cm0.0040 - 0.0060 in/inASTM D955
Melt Flow 16 g/10 min16 g/10 minASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 80.0 MPa11600 psiASTM D638
Flexural Strength 127 MPa18400 psiASTM D790
Flexural Modulus 4.50 GPa653 ksiASTM D790
Izod Impact, Notched (ISO) 8.00 kJ/m²3.81 ft-lb/in²ISO 180
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 108 °C226 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 102 °C216 °FASTM D648
 
Processing PropertiesMetricEnglishComments
Processing Temperature 255 - 275 °C491 - 527 °F
Rear Barrel Temperature 240 - 270 °C464 - 518 °F
Middle Barrel Temperature 245 - 275 °C473 - 527 °F
Front Barrel Temperature 250 - 280 °C482 - 536 °F
Nozzle Temperature 245 - 275 °C473 - 527 °F
Mold Temperature 63.0 - 93.0 °C145 - 199 °F
Drying Temperature 107 - 113 °C225 - 235 °F
Dry Time 4 - 6 hour4 - 6 hour
Moisture Content <= 0.020 %<= 0.020 %
Dew Point <= -17.8 °C<= 0.000 °F
Drying Air Flow Rate 22.7 - 28.3 l/min0.800 - 1.00 ft³/min (CFM)per lb/hour or resin processes
Injection Pressure 34.5 - 172 MPa5000 - 25000 psi
Back Pressure 0.000 - 0.517 MPa0.000 - 75.0 psi
Shot Size 50 - 80 %50 - 80 %
Vent Depth 0.00127 - 0.00203 cm0.000500 - 0.000800 in
Cushion 0.635 cm0.250 in
Screw Speed 50 - 80 rpm50 - 80 rpm
 
Descriptive Properties
Fill RateModerate - Fast
Hold40 - 60% of injection pressure
Packing50 - 75% of injection pressure

**
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