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Polystyrene (PS) Processing Information
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English
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| Density (g/cm³) | 0.0110 to 0.0362 | 1.02 to 1.06 | 1.03 to 1.16 | 1.14 to 1.18 | 1.04 | 1.02 to 1.16 | 0.0200 to 1.02 | 1.03 to 1.15 | 1.01 to 1.44 | | Mold Shrinkage, Flow (in/in) | -- | 0.0038 to 0.0060 | 0.0045 to 0.0061 | 0.0040 to 0.0055 | 0.0040 to 0.0070 | 0.0040 to 0.0060 | 0.0045 | 0.0050 to 0.0070 | 0.0030 to 0.020 | | Melt Mass Flow Rate (g/10 min) | -- | 0.012 to 15 | 0.50 to 14 | 4.4 to 13 | 4.5 to 14 | 2.9 to 20 | 0.14 to 4.5 | -- | -- | | Drying Temperature (°F) | -- | 157 to 180 | 158 to 182 | 158 | 158 to 170 | 158 to 167 | -- | 158 to 176 | 176 | | Drying Time (hr) | -- | 1.5 to 2.6 | 1.5 to 3.0 | 2.0 | 1.5 to 2.0 | 1.5 to 2.0 | -- | 3.0 to 4.0 | 3.5 | | Suggested Max Moisture (%) | -- | 0.010 to 0.020 | 0.010 to 0.050 | -- | -- | -- | -- | -- | -- | | Suggested Max Regrind (%) | -- | 20 to 30 | 30 | 25 | 30 | -- | -- | -- | -- | | Injection Pressure (psi) | -- | 4350 to 22500 | 4100 to 22500 | 11000 | 15200 to 22500 | -- | -- | -- | -- | | Rear Temperature (°F) | -- | 320 to 456 | 336 to 456 | 380 | 356 to 400 | 338 to 435 | -- | 464 to 500 | 518 | | Middle Temperature (°F) | -- | 374 to 453 | 374 to 480 | 420 | 383 to 410 | 383 to 384 | -- | 482 to 518 | 536 | | Front Temperature (°F) | -- | 390 to 456 | 388 to 520 | 440 | 401 to 450 | 406 to 410 | -- | 500 to 518 | 554 | | Nozzle Temperature (°F) | -- | 400 to 444 | 418 to 445 | 440 | 392 to 428 | 392 to 393 | -- | 500 to 518 | 554 | | Processing (Melt) Temp (°F) | -- | 388 to 464 | 406 to 480 | 419 to 482 | 379 to 446 | 426 to 428 | -- | 518 to 572 | 590 | | Mold Temperature (°F) | -- | 86.0 to 142 | 94.5 to 142 | 122 to 140 | 90.0 to 140 | 113 to 122 | -- | 122 to 149 | 158 |
SI
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| Density (g/cm³) | 0.0110 to 0.0362 | 1.02 to 1.06 | 1.03 to 1.16 | 1.14 to 1.18 | 1.04 | 1.02 to 1.16 | 0.0200 to 1.02 | 1.03 to 1.15 | 1.01 to 1.44 | | Mold Shrinkage, Flow (cm/cm) | -- | 0.0038 to 0.0060 | 0.0045 to 0.0061 | 0.0040 to 0.0055 | 0.0040 to 0.0070 | 0.0040 to 0.0060 | 0.0045 | 0.0050 to 0.0070 | 0.0030 to 0.020 | | Melt Mass Flow Rate (g/10 min) | -- | 0.012 to 15 | 0.50 to 14 | 4.4 to 13 | 4.5 to 14 | 2.9 to 20 | 0.14 to 4.5 | -- | -- | | Drying Temperature (°C) | -- | 69.4 to 82.2 | 69.9 to 83.1 | 69.8 to 70.0 | 70.0 to 76.7 | 70.0 to 75.0 | -- | 70.0 to 80.0 | 80.0 | | Drying Time (hr) | -- | 1.5 to 2.6 | 1.5 to 3.0 | 2.0 | 1.5 to 2.0 | 1.5 to 2.0 | -- | 3.0 to 4.0 | 3.5 | | Suggested Max Moisture (%) | -- | 0.010 to 0.020 | 0.010 to 0.050 | -- | -- | -- | -- | -- | -- | | Suggested Max Regrind (%) | -- | 20 to 30 | 30 | 25 | 30 | -- | -- | -- | -- | | Injection Pressure (MPa) | -- | 30.0 to 155 | 28.3 to 155 | 75.8 | 105 to 155 | -- | -- | -- | -- | | Rear Temperature (°C) | -- | 160 to 236 | 169 to 235 | 193 | 180 to 204 | 170 to 224 | -- | 240 to 260 | 270 | | Middle Temperature (°C) | -- | 190 to 234 | 190 to 249 | 216 | 195 to 210 | 195 to 196 | -- | 250 to 270 | 280 | | Front Temperature (°C) | -- | 199 to 235 | 198 to 271 | 227 | 205 to 232 | 208 to 210 | -- | 260 to 270 | 290 | | Nozzle Temperature (°C) | -- | 204 to 229 | 215 to 229 | 227 | 200 to 220 | 200 | -- | 260 to 270 | 290 | | Processing (Melt) Temp (°C) | -- | 198 to 240 | 208 to 249 | 215 to 250 | 193 to 230 | 219 to 220 | -- | 270 to 300 | 310 | | Mold Temperature (°C) | -- | 30.0 to 61.0 | 34.7 to 61.1 | 50.0 to 60.0 | 32.2 to 60.0 | 44.8 to 50.0 | -- | 50.0 to 65.0 | 70.0 |
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