Polystyrene (PS) Typical Properties Generic PS (GPPS)

Product Description
This data represents typical values that have been calculated from all products classified as: Generic PS (GPPS)

This information is provided for comparative purposes only.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Physical
Nominal Value
Unit
Test Method
Density / Specific Gravity
     
--
1.03 to 1.06
 
ASTM D792
73°F
1.04 to 1.05
g/cm³
ISO 1183
--
1.04
g/cm³
ASTM D1505
Apparent (Bulk) Density
0.60 to 0.65
g/cm³
ASTM D1895, ISO 60
Melt Mass-Flow Rate (MFR)
     
200°C/5.0 kg
1.5 to 15
g/10 min
ASTM D1238
200°C/5.0 kg
0.80 to 11
g/10 min
ISO 1133
Melt Volume-Flow Rate (MVR) (200°C/5.0 kg)
1.5 to 26
cm³/10min
ISO 1133
Molding Shrinkage
     
Flow : 73°F
4.5E-3 to 6.0E-3
in/in
ASTM D955
73°F
0.35 to 0.56
%
ISO 294-4
Water Absorption
     
24 hr, 73°F
0.030 to 0.10
%
ASTM D570
24 hr, 73°F
0.10
%
ISO 62
Equilibrium, 73°F
0.030 to 0.10
%
ASTM D570
Equilibrium, 73°F, 50% RH
0.098 to 0.11
%
ISO 62
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
     
73°F
408000 to 492000
psi
ASTM D638
73°F
287000 to 479000
psi
ISO 527-2
Tensile Strength
     
Yield, 73°F
5400 to 8100
psi
ASTM D638
Yield, 73°F
2670 to 8160
psi
ISO 527-2
Break, 73°F
3590 to 7590
psi
ASTM D638
Break, 73°F
2900 to 7980
psi
ISO 527-2
73°F
2970 to 7700
psi
ASTM D638
73°F
3270 to 7400
psi
ISO 527-2
Tensile Elongation
     
Yield, 73°F
1.5 to 10
%
ASTM D638
Yield, 73°F
1.4 to 2.1
%
ISO 527-2
Break, 73°F
0.50 to 4.0
%
ASTM D638
Break, 73°F
1.0 to 3.9
%
ISO 527-2
Nominal Tensile Strain at Break (73°F)
1.5 to 2.3
%
ISO 527-2
Flexural Modulus
     
73°F
428000 to 513000
psi
ASTM D790
73°F
270000 to 509000
psi
ISO 178
Flexural Strength
     
73°F
5460 to 14800
psi
ASTM D790
73°F
5480 to 15800
psi
ISO 178
Yield, 73°F
8350 to 15000
psi
ASTM D790
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength (73°F)
0.90 to 4.8
ft·lb/in²
ISO 179
Charpy Unnotched Impact Strength (73°F)
2.4 to 26
ft·lb/in²
ISO 179
Notched Izod Impact
     
73°F
0.10 to 0.47
ft·lb/in
ASTM D256
73°F
0.83 to 4.4
ft·lb/in²
ISO 180
Unnotched Izod Impact (73°F)
0.28 to 4.2
ft·lb/in
ASTM D256
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness
     
73°F
71 to 115
 
ASTM D785
73°F
70 to 105
 
ISO 2039-2
Ball Indentation Hardness
21500 to 21900
psi
ISO 2039-1
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     
66 psi, Unannealed
172 to 212
°F
ASTM D648
66 psi, Unannealed
170 to 187
°F
ISO 75-2/B
66 psi, Annealed
187 to 212
°F
ISO 75-2/B
264 psi, Unannealed
159 to 209
°F
ASTM D648
264 psi, Unannealed
157 to 203
°F
ISO 75-2/A
264 psi, Annealed
183 to 203
°F
ASTM D648
264 psi, Annealed
179 to 210
°F
ISO 75-2/A
Vicat Softening Temperature
     
--
193 to 228
°F
ASTM D1525
--
178 to 223
°F
ISO 306
CLTE - Flow
     
--
3.9E-5 to 5.0E-5
in/in/°F
ASTM D696
--
3.6E-5 to 5.0E-5
in/in/°F
ISO 11359-2
Thermal Conductivity (73°F)
1.1 to 1.2
Btu·in/hr/ft²/°F
ISO 8302
RTI Imp
122 to 140
°F
UL 746
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
     
--
1.0E+4 to 5.1E+11
ohms
ASTM D257
--
20 to 1.5E+15
ohms
IEC 60093
Volume Resistivity
     
73°F
1.0E+3 to 1.3E+16
ohms·cm
ASTM D257
73°F
1.0E+2 to 1.0E+18
ohms·cm
IEC 60093
Dielectric Strength
     
73°F
500 to 570
V/mil
ASTM D149
73°F
500 to 3800
V/mil
IEC 60243-1
Dielectric Constant (73°F)
2.50
 
ASTM D150
Dissipation Factor (73°F)
5.0E-5 to 2.0E-4
 
IEC 60250
Comparative Tracking Index
373 to 600
V
IEC 60112
Flammability
Nominal Value
Unit
Test Method
Burning Rate
0.0 to 4.0
in/min
ISO 3795
Glow Wire Flammability Index
1200 to 1760
°F
IEC 60695-2-12
Glow Wire Ignition Temperature
1160 to 1200
°F
IEC 60695-2-13
Optical
Nominal Value
Unit
Test Method
Transmittance
89.0 to 95.0
%
ASTM D1003
Haze
0.300 to 1.07
%
ASTM D1003
Injection
Nominal Value
Unit
 
Drying Temperature
157 to 180
°F
 
Drying Time
1.0 to 3.0
hr
 
Suggested Max Regrind
25
%
 
Rear Temperature
336 to 460
°F
 
Middle Temperature
374 to 481
°F
 
Front Temperature
382 to 477
°F
 
Nozzle Temperature
399 to 461
°F
 
Processing (Melt) Temp
379 to 500
°F
 
Mold Temperature
90 to 145
°F
 
Injection Pressure
12500 to 22500
psi
 
Back Pressure
37.5 to 1470
psi
 
Cushion
0.250 to 0.253
in
 
Injection Notes
This data represents typical values that have been calculated from all products classified as: Generic PS (GPPS)

This information is provided for comparative purposes only.
Extrusion
Nominal Value
Unit
 
Drying Temperature
157 to 176
°F
 
Drying Time
1.5 to 3.0
hr
 
Cylinder Zone 1 Temp.
349 to 372
°F
 
Cylinder Zone 2 Temp.
379 to 392
°F
 
Cylinder Zone 3 Temp.
390 to 428
°F
 
Cylinder Zone 4 Temp.
405 to 428
°F
 
Cylinder Zone 5 Temp.
414 to 415
°F
 
Adapter Temperature
415
°F
 
Melt Temperature
412 to 466
°F
 
Die Temperature
400 to 420
°F
 
Extrusion Notes
This data represents typical values that have been calculated from all products classified as: Generic PS (GPPS)

This information is provided for comparative purposes only.
Notes
1Typical properties: these are not to be construed as specifications.