NOVA Chemicals Dylark® 332 High Performance Styrenic, Transparent Grade

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NOVA Chemicals Dylark® 332 High Performance Styrenic, Transparent Grade (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS)
Material Notes:	High heat resistance, Sparking water-white clarity, Good chemical resistance, High modulus, for superior shear and torque resistance Applications: Light pipes and lighting, High heat microwave packaging, Cosmetics, Dishwasher safe tumblers, Coatings and adhesives Injection Speed: Medium-Fast Information provided by NOVA Chemicals. This grade no longer in product line. 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.
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Physical Properties	Metric	English	Comments

Density	1.08 g/cc	0.0390 lb/in³	ASTM D792
Water Absorption	0.10 %	0.10 %	ASTM D570
Linear Mold Shrinkage	0.0050 cm/cm	0.0050 in/in	NOVA
Melt Flow	1.9 g/10 min @Load 2.16 kg, Temperature 230 °C	1.9 g/10 min @Load 4.76 lb, Temperature 446 °F	Condition L; ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell L	108	108	ASTM D785
Tensile Strength, Ultimate	48.3 MPa	7010 psi	ASTM D638
Elongation at Break	1.6 %	1.6 %	ASTM D638
Modulus of Elasticity	3.38 GPa	490 ksi	ASTM D638
Flexural Yield Strength	117 MPa	17000 psi	ASTM D790
Flexural Modulus	3.65 GPa	529 ksi	ASTM D790

Thermal Properties	Metric	English	Comments
CTE, linear	66.0 µm/m-°C @Temperature 20.0 °C	36.7 µin/in-°F @Temperature 68.0 °F	NOVA
Deflection Temperature at 1.8 MPa (264 psi)	112 °C @Diameter 6.35 mm	234 °F @Diameter 0.250 in	bar; ASTM D648
Vicat Softening Point	135 °C	275 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Refractive Index	1.581	1.581
Haze	<= 2.0 %	<= 2.0 %	ASTM D1003
Transmission, Visible	88 %	88 %	ASTM D1003

Processing Properties	Metric	English	Comments
Processing Temperature	177 - 260 °C	351 - 500 °F	Profile Temperature
Melt Temperature	204 - 260 °C	399 - 500 °F	Air purge at equilibrium conditions
Mold Temperature	43.0 - 60.0 °C	109 - 140 °F	Mold surface temperature at equilibrium conditions
Back Pressure	0.345 - 0.689 MPa	50.0 - 100 psi
Screw Speed	40 - 80 rpm	40 - 80 rpm

**
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PNOVA224 / 55125

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