HIPS7240 HIPS7240 is a very high impact polystyrene for the extrusion industry. This grade has been designed to diluted with crystal polystyrene. The good melt strength of this grade makes it particularly suited for deep-draw thermoforming. HIPS7240 is available in white color. Applications darty sheet,cups,trays,egg boxes,general packaging,coextrusion with GPPS at