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STYRON™ 421
| Category: | PS (HIPS) , High Impact Polystyrene |
| Manufacturer: | Americas Styrenics LLC |
| Trademark: | STYRON™ |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | klO9TX_STYRON-421.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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STYRON™421 is a high impact polystyrene material,. This product is available in North America and is processed by extrusion or injection molding. STYRON™The main features of the 421 are:
Typical application areas include:
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| General Information | |
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| Features |
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| Uses |
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| Agency Ratings |
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| UL File Number |
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| Forms |
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| Processing Method |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.04 | g/cm³ | ASTM D792 |
| Melt Mass-Flow Rate (MFR) (200°C/5.0 kg) | 3.9 | g/10 min | ASTM D1238 |
| Molding Shrinkage - Flow | 0.40 - 0.80 | % | ASTM D955 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Rockwell Hardness (R-Scale) | 115 | ASTM D785 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Modulus (Injection Molded) | 2200 | MPa | ASTM D638 |
| Tensile Strength | ASTM D638 | ||
| Fracture, injection molding | 31.0 | MPa | ASTM D638 |
| Injection Molding | 34.0 | MPa | ASTM D638 |
| Tensile Elongation (Break, Injection Molded) | 60 | % | ASTM D638 |
| Flexural Modulus (Injection Molded) | 2300 | MPa | ASTM D790 |
| Flexural Strength (Injection Molded) | 43.0 | MPa | ASTM D790 |
| Impact | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Notched Izod Impact | ASTM D256 | ||
| 23°C, molded | 77 | J/m | ASTM D256 |
| 23°C, injection molding | 100 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Deflection Temperature Under Load | ASTM D648 | ||
| 0.45 MPa, not annealed | 92.0 | °C | ASTM D648 |
| 1.8 MPa, not annealed | 82.0 | °C | ASTM D648 |
| Vicat Softening Temperature | 103 | °C | ASTM D1525 |
| CLTE - Flow | 9.0E-5 | cm/cm/°C | ASTM D696 |
| Flammability | Nominal Value | Test Method | |
|---|---|---|---|
| Flame Rating | HB | UL 94 |
| Injection | Nominal Value | Unit | |
|---|---|---|---|
| Rear Temperature | 218 - 249 | °C | |
| Middle Temperature | 218 - 249 | °C | |
| Front Temperature | 199 - 213 | °C | |
| Nozzle Temperature | 213 - 243 | °C | |
| Mold Temperature | 15.6 - 65.6 | °C | |
| Injection Rate | Fast | ||
| Back Pressure | 0.200 - 1.20 | MPa | |
| Cushion | 6.35 | mm |
| Extrusion | Nominal Value | Unit | |
|---|---|---|---|
| Cylinder Zone 1 Temp. | 177 - 193 | °C | |
| Cylinder Zone 2 Temp. | 182 - 204 | °C | |
| Cylinder Zone 3 Temp. | 188 - 210 | °C | |
| Cylinder Zone 4 Temp. | 199 - 216 | °C | |
| Cylinder Zone 5 Temp. | 204 - 221 | °C | |
| Adapter Temperature | 193 - 232 | °C | |
| Melt Temperature | 193 - 232 | °C | |
| Die Temperature | 199 - 232 | °C |
| Extrusion instructions |
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| Zone 6 Temperature: 204 to 221°CMelt Pump, Pipes, Screen Changer Temperature: 193 to 232°CPolish Rolls Temperature: 66 to 104°CHead Pressure: 10 to 21 MPa |
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