Phillips Sumika Marlex® CHP-275 Thermoplastic Polyolefin  (discontinued **)

Engineered Thermoplastic Polyolefin.Applications: Automotive Head and Side Impact TrimConditioning after Molding: 48 hr at 23°C, 48 hr at 90°CNominal Shrinkage: 0.7-0.9%, 0.8-1.1%Drying conditionsTemperature: 80-100°CTime: 2 hours minimum, 4 hours maximumDevice: Desiccant DryerMoisture content: 0.1 wt% max.Molding TemperaturesRear Temperature: 145-200°CMiddle Temperature: 210-235°CFront and Nozzle Temps: 210-235°CStock Temperature: 191-246°CMold Temperature: 23-50°CProcessing conditionsSuggested shot size: 50-70%First stage injection pressure: MaximizeScrew Speed: 30-60%Packing pressure: MinimizeBack Pressure: 50-150 psiOther molding considerations: Melt temperature above 260°C may cause resin degradation and changes to resin properties. To improve dispersion of color concentrates use a screw with a mixing zone or mixing nozzle.Phillips Sumika Polypropylene Company has been shut down, as announced in 2011. This product had been discontinued prior to the shutdown announcement.