Conductive polystyrene (PS-ESD)
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Grade
WCI EPS-ESD
WCI GPPS-ESD
WCI HIPS-ESD
WCI PS-ESD compounds are specially engineered polystyrene grades with electrostatic discharge (ESD) properties, designed to prevent static build-up and safely dissipate charges. These materials retain the core benefits of polystyrene — light weight, rigidity, transparency, or impact resistance depending on the base grade — while delivering controlled surface resistivity in the range of 10⁷–10⁹ Ω/sq.
WCI offers PS-ESD grades based on different PS families to meet diverse requirements:
- EPS-ESD: Lightweight, foamed, and insulating with added ESD protection.
- GPPS-ESD: Transparent, rigid, and easy to process with dissipative properties.
- HIPS-ESD: Toughened and impact-resistant for functional ESD-safe components.
Together, these grades enable safe, reliable, and cost-effective solutions for electronics packaging, protective housings, and thermoformed trays used in sensitive applications.
| Grade | MFI (g/10min) | Density (g/cm³) | Surface Resistivity (Ω/sq) | Tensile Strength (MPa) | Impact Strength | Key Features | Typical Applications |
|---|---|---|---|---|---|---|---|
| WCI EPS-ESD | 25–30 | ~1.02 | 10⁷–10⁹ | 15-20 | Moderate | Lightweight, foamed, insulating with ESD safety | Protective foams & packaging for electronic components & delicate devices |
| WCI GPPS-ESD | 12-15 | 1.03 | 10⁷–10⁹ | 42 | LOW | Transparent, rigid, easy to process with anti-static effect | Transparent sheets, housings, injection molded parts with anti-static needs |
| WCI HIPS-ESD | 8-12 | 1.04 | 10⁷–10⁹ | 25 | HIGH | Impact-resistant, toughened, dissipative properties | Thermoformed trays, electronic casings, covers, dissipative packaging |
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