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Elmet Technologies

LG Chemical GPPS 20HR(E) PS, High Transparency, Heat Resistance
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade; Polystyrene, Transparent Grade

Material Notes: Description: Injection Molding, PS, High Transparency, Heat Resistance

Application: PSP, Food Tray, Electric/Electrical Component, Coating

CAS: 9003-53-6

Information provided by LG Chemical

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
Specific Gravity 1.05 g/cc1.05 g/ccASTM D792
Maximum Moisture Content 0.0100.010Injection Molding
Linear Mold Shrinkage, Flow 0.0040 - 0.0080 cm/cm
@Thickness 3.20 mm
0.0040 - 0.0080 in/in
@Thickness 0.126 in
ASTM D955
Melt Flow  6.0 g/10 min
@Load 5.00 kg,
Temperature 200 °C
6.0 g/10 min
@Load 11.0 lb,
Temperature 392 °F
ASTM D1238 (G)
 17 g/10 min
@Load 3.80 kg,
Temperature 230 °C
17 g/10 min
@Load 8.38 lb,
Temperature 446 °F
ASTM D1238 (I)
 73 g/10 min
@Load 10.0 kg,
Temperature 220 °C
73 g/10 min
@Load 22.0 lb,
Temperature 428 °F
ASTM D1238 (G)
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 121121ASTM D785
Tensile Strength, Yield 47.1 MPa
@Thickness 3.20 mm
6830 psi
@Thickness 0.126 in
50mm/min; ASTM D638
Elongation at Break 4.0 %
@Thickness 3.20 mm
4.0 %
@Thickness 0.126 in
50mm/min; ASTM D638
Tensile Modulus 2.86 GPa
@Thickness 3.20 mm
415 ksi
@Thickness 0.126 in
1mm/min; ASTM D638
Flexural Yield Strength 94.1 MPa
@Thickness 3.20 mm
13700 psi
@Thickness 0.126 in
15mm/min; ASTM D790
Flexural Modulus 3.24 GPa
@Thickness 3.20 mm
469 ksi
@Thickness 0.126 in
15mm/min; ASTM D790
Izod Impact, Notched  0.0981 J/cm
@Thickness 6.40 mm,
Temperature 23.0 °C
0.184 ft-lb/in
@Thickness 0.252 in,
Temperature 73.4 °F
ASTM D256
 0.0981 J/cm
@Thickness 6.40 mm,
Temperature -30.0 °C
0.184 ft-lb/in
@Thickness 0.252 in,
Temperature -22.0 °F
ASTM D256
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+14 ohm-cm1.00e+14 ohm-cm
Dielectric Strength 42.0 kV/mm1070 kV/in
Arc Resistance 120 - 180 sec120 - 180 secASTM D495
Hot Wire Ignition, HWI  7.0 - 15 sec
@Thickness >=1.50 mm
7.0 - 15 sec
@Thickness >=0.0591 in
 15 - 30 sec
@Thickness >=3.00 mm
15 - 30 sec
@Thickness >=0.118 in
High Amp Arc Ignition, HAI  60 - 120 arcs
@Thickness 1.50 mm
60 - 120 arcs
@Thickness 0.0591 in
 >= 120 arcs
@Thickness 3.00 mm
>= 120 arcs
@Thickness 0.118 in
High Voltage Arc-Tracking Rate, HVTR 25.4 - 50.0 mm/min1.00 - 1.97 in/min
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 93.0 °C
@Thickness 6.40 mm
199 °F
@Thickness 0.252 in
Unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 86.0 °C
@Thickness 6.40 mm
187 °F
@Thickness 0.252 in
Unannealed; ASTM D648
Vicat Softening Point 94.0 °C
@Load 5.00 kg
201 °F
@Load 11.0 lb
50°C/h; ASTM D1525
UL RTI, Electrical  50.0 °C
@Thickness >=1.50 mm
122 °F
@Thickness >=0.0591 in
 50.0 °C
@Thickness >=3.00 mm
122 °F
@Thickness >=0.118 in
UL RTI, Mechanical with Impact  50.0 °C
@Thickness >=1.50 mm
122 °F
@Thickness >=0.0591 in
 50.0 °C
@Thickness >=3.00 mm
122 °F
@Thickness >=0.118 in
UL RTI, Mechanical without Impact  50.0 °C
@Thickness >=1.50 mm
122 °F
@Thickness >=0.0591 in
 50.0 °C
@Thickness >=3.00 mm
122 °F
@Thickness >=0.118 in
Flammability, UL94  HB
@Thickness >=1.50 mm
HB
@Thickness >=0.0591 in
 HB
@Thickness >=3.00 mm
HB
@Thickness >=0.118 in
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 170 - 190 °C338 - 374 °FInjection Molding
Middle Barrel Temperature 180 - 200 °C356 - 392 °FInjection Molding
Front Barrel Temperature 190 - 210 °C374 - 410 °FInjection Molding
Nozzle Temperature 190 - 220 °C374 - 428 °FInjection Molding
Melt Temperature 190 - 220 °C374 - 428 °FInjection Molding
Mold Temperature 40.0 - 70.0 °C104 - 158 °FInjection Molding
Drying Temperature 80.0 °C176 °FInjection Molding
Dry Time 2.00 - 4.00 hour2.00 - 4.00 hourInjection Molding
Back Pressure 29.4 - 58.8 MPa4260 - 8530 psiInjection Molding
Screw Speed 30 - 60 rpm30 - 60 rpmInjection Molding

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