SABIC LEXAN™ Copolymer 4704 Polycarbonate (PC) (Asia)

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SABIC LEXAN™ Copolymer 4704 Polycarbonate (PC) (Asia)
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	High heat resistant polycarbonate copolymer, provides DTUL of 300F at 264 psi. FDA food contact compliant in limited colors. Effective January 15th, 2008 this grade will no longer be supported with biocompatibility information and should not be used for medical applications which require biocompatibility. Alternative grade HPH4704. Features: High Heat Resistance Information provided by SABIC
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 g/cc	ASTM D792
	1.20 g/cc	ASTM D792
Density	1.19 g/cc	ASTM D792
Water Absorption	0.19 % @Time 86400 sec	ASTM D570
Moisture Absorption	0.0200 %	Injection Molding
Linear Mold Shrinkage, Flow	0.0080 - 0.010 cm/cm @Thickness 3.20 mm	SABIC method
Melt Flow	2.0 g/10 min @Load 1.20 kg, Temperature 300 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	92	ASTM D785
Hardness, Rockwell R	127	ASTM D785
Tensile Strength at Break	77.0 MPa	50 mm/min; ASTM D638
Tensile Strength, Yield	65.0 MPa	50 mm/min; ASTM D638
Elongation at Break	78 %	50 mm/min; ASTM D638
Flexural Strength	97.0 MPa	yld, 1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus	2330 MPa	1.3 mm/min, 50 mm span; ASTM D790
Izod Impact Notched	373 J	ASTM D256
Izod Impact, Unnotched	3204 J/m	ASTM D4812
Tensile Impact Strength	577 kJ/m²	ASTM D1822
Dart Drop, Total Energy	149 J	ASTM D3029

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 2.50e+17 ohm-cm	ASTM D257
Dielectric Constant	3.1 @Frequency 1e+6 Hz	ASTM D150
	3.27 @Frequency 50.0 - 60.0 Hz	ASTM D150
Dielectric Strength	20.0 kV/mm @Thickness 3.20 mm	in air; ASTM D149
Dissipation Factor	0.0016 @Frequency 50.0 - 60.0 Hz	ASTM D150
	0.026 @Frequency 100 Hz	ASTM D150
Arc Resistance	60 - 120 sec	ASTM D495
Comparative Tracking Index	175 - 250 V	UL 746A
Hot Wire Ignition, HWI	15 - 30 sec @Thickness >=1.50 mm	UL 746A
	30 - 60 sec @Thickness >=3.00 mm	UL 746A
	60 - 120 sec @Thickness >=6.00 mm	UL 746A
High Amp Arc Ignition, HAI	0.00 - 15 arcs @Thickness >=1.50 mm	UL 746A
	15 - 30 arcs @Thickness >=3.00 mm	UL 746A
High Voltage Arc-Tracking Rate, HVTR	80.0 - 150 mm/min	UL 746A

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	81.0 µm/m-°C @Temperature -40.0 - 95.0 °C	ASTM E831
Specific Heat Capacity	1.25 J/g-°C	ASTM C351
Thermal Conductivity	0.210 W/m-K	ASTM C177
Deflection Temperature at 1.8 MPa (264 psi)	148 °C @Thickness 3.20 mm	unannealed; ASTM D648
UL RTI, Electrical	130 °C	UL 746B
UL RTI, Mechanical with Impact	130 °C	UL 746B
UL RTI, Mechanical without Impact	130 °C	UL 746B
Flammability, UL94	HB @Thickness >=1.50 mm	UL 94

Optical Properties	Original Value	Comments
Refractive Index	1.60	ASTM D542
Haze	1.0 % @Thickness 2.54 mm	ASTM D1003
Transmission, Visible	85 % @Thickness 2.54 mm	ASTM D1003

Processing Properties	Original Value	Comments
Nozzle Temperature	345 - 365 °C
Zone 2	340 - 360 °C
Zone 3	350 - 370 °C
Melt Temperature	350 - 370 °C	Injection Molding
Mold Temperature	80.0 - 115 °C
Drying Temperature	120 °C	Injection Molding
Dry Time	3.00 - 4.00 hour	Injection Molding
	48.0 hour	Cumulative; Injection Molding
Back Pressure	0.300 - 0.700 MPa
Shot Size	40 - 60 %
Vent Depth	0.00250 - 0.00760 cm
Screw Speed	40 - 70 rpm

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PSABH80072 / 288019

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