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Chi Mei Polyrex® PG-383 Polystyrene  (discontinued **)
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade

Material Notes: High heat; high strength

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
Density 1.05 g/cc0.0379 lb/in³ISO 1183
Melt Flow 2.2 g/10 min
@Load 10.0 kg,
Temperature 220 °C
2.2 g/10 min
@Load 22.0 lb,
Temperature 428 °F
Melt Volume Rate (ml/10 min); ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 141 MPa20500 psiH358/30; ISO 2039-1
Tensile Strength at Break 52.0 MPa7540 psi50 mm/min; ISO 527
Tensile Strength, Yield 54.0 MPa7830 psi50 mm/min; ISO 527
Elongation at Break 6.0 %6.0 %50 mm/min; ISO 527
Flexural Strength 89.0 MPa12900 psi2 mm/min; ISO 178
Flexural Modulus 2.50 GPa363 ksi2 mm/min; ISO 178
Izod Impact, Notched (ISO) 2.00 kJ/m²0.952 ft-lb/in²ISO 180/1A
Izod Impact, Unnotched (ISO) 9.00 kJ/m²4.28 ft-lb/in²ISO 180/1C
Charpy Impact Unnotched 1.10 J/cm²5.24 ft-lb/in²ISO 179
Charpy Impact, Notched 0.300 J/cm²1.43 ft-lb/in²ISO 179
Impact 3.03.0Impact Flexural Test Notched (KJ/m²)
 1818Impact Flexural Test Unnotched (KJ/m²)
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 85.0 °C185 °Funannealed; ISO 75
 99.0 °C210 °Fannealed; ISO 75
Vicat Softening Point  103 °C
@Load 5.00 kg
217 °F
@Load 11.0 lb
50°C/hr; ISO 306
 106 °C
@Load 1.00 kg
223 °F
@Load 2.20 lb
50°C/hr; ISO 306
 107 °C
@Load 5.00 kg
225 °F
@Load 11.0 lb
120°C/hr; ISO 306
 110 °C
@Load 1.00 kg
230 °F
@Load 2.20 lb
120°C/hr; ISO 306
Flammability, UL94 HB
@Thickness 1.59 mm
HB
@Thickness 0.0625 in
UL 94

**
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