Product description: General purpose polystyrene GPPS 1028 is manufactured by continuous mass polymerization of styrene monomer. It has very high molecular weight , high heat grade , high melt strength , good clarity and mechanical strength. Typical application: It is recommended for XPS sheets and plates,and extruded embossed sheets,and its suitable for food applications . to make sure the article in their actual use are in compliance with the imposed migration requirements
| Properties | Unit | Typical value | Test Method |
| Physical | |||
| Melt flow rate @200°C & 5 kg load | g/10min | 2.4 | D1238 |
| Mechanical properties | |||
| Tensile strenght | MPa | 55 | D638 |
| Flexural modulus | MPa | 3200 | D790 |
| Charpy impact strength(un notched) | Kj/m² | 11 | D256 |
| Thermal properties | |||
| Vicat softening point @120°C,1 kg(min) | oC | 102 | D1525 |
Note: All mechanical properties measured under standard conditions 50% RH and 23C.