Phillips Sumika Marlex® CBF-265 Thermoplastic Polyolefin

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Phillips Sumika Marlex® CBF-265 Thermoplastic Polyolefin (discontinued **)
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene, Mineral Reinforced
Material Notes:	Talc-Filled, High Flow, Thermoplastic Polyolefin. Applications: Automotive Exterior Parts Conditioning after Molding: 48 hr at 23°C Nominal Shrinkage: 0.8-1.0% Drying conditions Temperature: 80-100°C Time: 2 hours minimum, 4 hours maximum Device: Desiccant Dryer Moisture content: 0.1 wt% max. Molding Temperatures Rear Temperature: 145-200°C Middle Temperature: 210-235°C Front and Nozzle Temps: 210-235°C Stock Temperature: 191-246°C Mold Temperature: 23-50°C Processing conditions Suggested shot size: 50-70% First stage injection pressure: Maximize Screw Speed: 30-60% Packing pressure: Minimize Back Pressure: 50-150 psi Other 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.
Key Words:	Information Provided by Chevron Phillips Chemical
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Physical Properties	Metric	English	Comments

Density	0.960 g/cc	0.0347 lb/in³	ISO 1183
Linear Mold Shrinkage	0.0080 - 0.010 cm/cm	0.0080 - 0.010 in/in
Melt Flow	26 g/10 min @Temperature 230 °C	26 g/10 min @Temperature 446 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	60	60	ISO 868
Tensile Strength, Yield	16.0 MPa	2320 psi	50 mm/min; ISO 527
Flexural Modulus	1.05 GPa	152 ksi	2.0 mm/min; ISO 178
Izod Impact, Notched (ISO)	44.0 kJ/m²	20.9 ft-lb/in²	ISO 180
	4.00 kJ/m² @Temperature -40.0 °C	1.90 ft-lb/in² @Temperature -40.0 °F	ISO 180

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	80.0 °C	176 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	47.0 °C	117 °F	ISO 75

**
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PPPP003 / 90440

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