Borealis BorPure™ MB7541 High Density Polyethylene for Injection Molding

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Borealis BorPure™ MB7541 High Density Polyethylene for Injection Molding (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Extruded
Material Notes:	MB7541 is a bimodal, natural, high density polyethylene produced by the Borstar PE technology. MB7541 combines excellent organoleptic properties, Environmental Stress Crack Resistance (ESCR) and superior flow properties as well as good impact strength and toughness even at low temperatures. The improved processability, also at low melt temperature, allows energy savings and faster cycle time. MB7541 is designed for injection and compression molding. MB7541 is recommended for products requiring good environmental stress crack resistance and/or organoleptic properties and impact strength. Former trade name for this product was Borstar®. Information provided by the Manufacturer.
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Physical Properties	Metric	English	Comments

Density	0.954 g/cc	0.0345 lb/in³	ISO 1183
ESCR 10% Igepal®	>= 40 hour	>= 40 hour	ASTM D1693
Melt Flow	4.0 g/10 min @Load 2.16 kg, Temperature 190 °C	4.0 g/10 min @Load 4.76 lb, Temperature 374 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	61	61	ISO 868
Tensile Strength, Yield	22.0 MPa	3190 psi	At 50 mm/min; ISO 527-2
Elongation at Yield	10 %	10 %	At 50 mm/min; ISO 527-2
Tensile Modulus	0.850 GPa	123 ksi	At 1 mm/min; ISO 527-2
Tensile Impact Strength	80.0 kJ/m²	38.1 ft-lb/in²	At 23°C; ISO 8256/A1

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	65.0 °C	149 °F	ISO 75-2

Processing Properties	Metric	English	Comments
Melt Temperature	190 - 250 °C	374 - 482 °F

**
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PBOREA131 / 27438

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