Ineos Nova 3900 General Purpose Crystal Polystyrene

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Ineos Nova 3900 General Purpose Crystal Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Transparent Grade
Material Notes:	High flow, Good compounding Applications: Color concentrates, Compounding, Thin wall moldings Exposure to gamma radiation in the 2.02-6.06 megarad range has no significant effect on the physical and optical properties of the material. Properties were determined on injection molded specimens at 23°C and 50% R.H. unless otherwise specified. Information provided by NOVA Chemicals. INEOS NOVA began October 1 2007 as an expansion of the 50:50 joint venture between NOVA Chemicals and INEOS to include North American assets.
Key Words:	GPPS
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Physical Properties	Metric	English	Comments

Density	1.04 g/cc	0.0376 lb/in³	ASTM D792
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	0.0040 - 0.0070 in/in	ASTM D955
Melt Flow	38 g/10 min	38 g/10 min	Condition G

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	75	75
Tensile Strength, Yield	34.0 MPa	4930 psi	ASTM D638
Elongation at Break	2.0 %	2.0 %	ASTM D638
Flexural Yield Strength	48.0 MPa	6960 psi	ASTM D790
Flexural Modulus	3.006 GPa	436.0 ksi	ASTM D790
Izod Impact, Notched	0.200 J/cm @Diameter 3.17 mm	0.375 ft-lb/in @Diameter 0.125 in	bar, 0.010" notch radius; ASTM D256

Electrical Properties	Metric	English	Comments
Dielectric Constant	2.59 @Frequency 1e+6 Hz	2.59 @Frequency 1e+6 Hz
Dielectric Strength	19.7 kV/mm @Thickness 3.17 mm	500 kV/in @Thickness 0.125 in

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	68.0 °C	154 °F	ASTM D648
Vicat Softening Point	84.0 °C	183 °F	ASTM D1525
Flammability, UL94	HB	HB

Optical Properties	Metric	English	Comments
Refractive Index	1.59 @Wavelength 589.3 nm	1.59 @Wavelength 589.3 nm	sodium D line
Optical Density	0.046	0.046	400-700 mm avg.
Transmission, Visible	88 - 90 %	88 - 90 %	at 550 mm

Processing Properties	Metric	English	Comments
Melt Temperature	190 - 274 °C	374 - 525 °F
Mold Temperature	38.0 - 82.0 °C	100 - 180 °F

**
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