Extrusion: Impact dilution; gloss layer in co-extrusion; anionic styrene butadiene copolymer dilution. Injection: Packaging articles; medical applications,e.g., petri dishes; office equipment; pen barrels; crisper boxes for refrigerators; cups.

GPPS 1540 is an easy flowing crystal polystyrene designed for extrusion or injection applications. In extrusion, it improves extruder output and thermoforming cycle time when mixed with a super high impact polystyrene such as HIPS 7240. It is particularly suitable for glossy-layer co-extrusion. It does combine excellent fluidity with a softening point higher than GPPS 1810/1811 grade.