Product Overview
Hengli GPPS HLGP850S is a high-flow, transparent blue-tint grade for thin, glossy extrusion and injection-moulded products.
Grade & Processing
Grade: HLGP850S. Polymer family: general-purpose polystyrene (GPPS). Material form: pellets. Suitable for injection moulding and/or extrusion as stated in the supplied TDS.
Typical Applications
- Food containers
- Water cups
- Lampshades
- Daily-use articles
- HIPS cap layers
Technical Data
| Property | Value / specification | Unit | Test method |
|---|---|---|---|
| Melt mass-flow rate | 7.5–8.5 (typical 8.1) | g/10 min | TDS |
| Tensile stress | ≥ 45 (typical 48.5) | MPa | TDS |
| Charpy impact strength | ≥ 7.8 (typical 8.0) | kJ/m² | TDS |
| Vicat softening temperature | ≥ 90 (typical 96) | °C | TDS |
| Heat-deflection temperature | ≥ 85 (typical 89) | °C | TDS |
| Residual styrene monomer | ≤ 400 (typical 330) | mg/kg | TDS |
| Light transmittance | ≥ 89 (typical 90) | % | TDS |
| Moulding shrinkage | 0.3–0.6 (typical 0.5) | % | TDS |
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