Borealis Borpact™ SG321MO Polypropylene Random Heterophasic Copolymer for Injection Molding

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Borealis Borpact™ SG321MO Polypropylene Random Heterophasic Copolymer for Injection Molding (discontinued **)
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene, Molded
Material Notes:	Borpact SG321MO is a specially designed modified relatively soft and transparent polypropylene random heterophasic copolymer intended for injection molding. Borpact SG321MO has excellent flow, is formulated for high speed injection molding and contains nucleating and release additives. Borpact SG321MO is designed for thin walled containers, lids and houseware articles requiring flexibility, good contact transparency and high impact strength. Examples include thin wall containers, houseware containers and lids, closures with film hinge, and tubes for cosmetic packaging. Information provided by the Manufacturer.
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Physical Properties	Original Value	Comments

Density	0.900 g/cc	ISO 1183
Linear Mold Shrinkage	0.010 - 0.020 cm/cm
Melt Flow	25 g/10 min @Load 2.16 kg, Temperature 230 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	50	ISO 868
Tensile Strength, Yield	2465 psi	At 50 mm/min; ISO 527-2
Elongation at Yield	15 %	At 50 mm/min; ISO 527-2
Tensile Modulus	0.600 GPa	At 1 mm/min; ISO 527-2
Charpy Impact, Notched	2.00 J/cm²	ISO 179/1eA
	0.650 J/cm² @Temperature -20.0 °C	ISO 179/1eA
Instrumented Impact Total Energy	18.0 J	Total Penetration Energy; ISO 6603-2
	30.0 J @Temperature -20.0 °C	Total Penetration Energy; ISO 6603-2

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	59.0 °C	ISO 75-2
Vicat Softening Point	45.0 °C	50 N; ISO 306

Optical Properties	Original Value	Comments
Transmission, Visible	90 %	transparent; thickness not quantified

Processing Properties	Original Value	Comments
Melt Temperature	210 - 250 °C
Mold Temperature	30.0 - 60.0 °C

**
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PBOREA091 / 27398

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