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Polystyrene – HIPS
WCI HIPS 7240 (Original) is a high-impact polystyrene grade developed for the extrusion and thermo-forming industries. It offers excellent melt strength, stable rheology, and balanced toughness, making it an ideal choice for dairy sheets, rigid containers, multilayer packaging, and thermoformed products such as cups, trays, and egg boxes.
WCI HIPS Compound builds on this foundation by incorporating impact modifiers, stabilizers, and pigments. This results in a material with superior surface quality, uniform melt flow, and higher durability, tailored for demanding industrial and consumer applications. It is widely used in refrigerator liners, TV housings, food packaging, and injection-molded parts requiring both performance and cost efficiency. Together, WCI HIPS 7240 and WCI HIPS Compound form a versatile product line that ensures consistent processing, durability, and aesthetic quality, with options for color matching, UV stabilization, and customer-specific formulations.
| Grade | MFI (g/10min) | Density (g/cm³) | Key Features | Typical Applications |
|---|---|---|---|---|
| WCI HIPS 7240 | 4.5 | ~1.04 (typical) | Excellent melt strength, stable rheology, balanced toughness, suitable for mono-layer and co-extrusion | Dairy & industrial sheets, rigid containers up to 5L, multilayer sheets, thermoformed cups, trays, lids, egg boxes |
| WCI HIPS Compound | 10.5 | 1.40 | Impact-modified, uniform melt flow, superior surface quality, cost-effective for industrial use | Refrigerator liners, TV housings, small appliance casings, food packaging, disposable containers, trays & display packaging |
