General Purpose Polystyrene (GPPS) 1018 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.
It is recommended for Foamed meat trays, foamed labels. In mixture with high impact Polystyrene for coffee cups, lids. In addition, for insulation board, clamshells for fast food, BOPS sheet and shower screens.
| Grade | Value | Unit | Test Method |
|---|---|---|---|
| Melt Flow Rate (200°C/5KG) | 1.5 – 1.7 | g/10min | ASMT D1238 |
| Tensile Strength | 56-59 | Mpa | ASTM D638 |
| Flexural modulus | 3300 | Mpa | ASTM D790 |
| Charpy impact strength (Unnotched) | 52 | Kj/m² | ASTM D256 |
| Vicat Softening point @ 50°C/hr,1 kg | 105 | ℃ | ASTM D1525 |
| Izod Impact (Notched) | 3.5 | KJ/m² | ISO 180 |
