SABIC Innovative Plastics LEXAN 4704 Polycarbonate (North America)
Subcategory: Polycarbonate; Polymer; Thermoplastic
Close Analogs: Saudi Basic Industries Corporation (SABIC) announced on August 31st, 2007, the completion of its purchase of GE Plastics.
Material Notes:
Information provided by GE Plastics for their North American product line.
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| Physical Properties | Original Value | Comments |
|
| Density | 1.2 g/cc | ASTM D 792 |
| Water Absorption | 0.19 % | 24 hours @ 73F; ASTM D 570 |
| Linear Mold Shrinkage | 0.008 - 0.01 cm/cm | Flow, 0.125 inch; ASTM D 955 |
| Melt Flow | 2 g/10 min | 300C/1.2 kgf (O); ASTM D 1238 |
Mechanical Properties |
|
| Hardness, Rockwell M | 92 | ASTM D 785 |
| Hardness, Rockwell R | 127 | ASTM D 785 |
| Tensile Strength @ Break | 11300 psi | Type I, 2.0 in/min; ASTM D 638 |
| Tensile Strength @ Yield | 9500 psi | Type I, 2.0 in/min; ASTM D 638 |
| Elongation at Break | 78 % | Type I, 2.0 in/min; ASTM D 638 |
| Flexural Modulus | 338000 psi | 0.05 in/min, 2" span; ASTM D 790 |
| Flexural Yield Strength | 14100 psi | 0.05 in/min, 2" span; ASTM D 790 |
| Izod Impact, Unnotched | 60 ft-lb/in | 73F; ASTM D 4812 |
| Tensile Impact Strength | 275 ft-lb/in² | Type "S"; ASTM D 1822 |
| Falling Dart Impact | 110 ft-lb | 73F; ASTM D 3029 |
| Izod Impact, Notched | 7 ft-lb/in | 73F; ASTM D 256 |
Electrical Properties |
|
| Volume Resistivity | Min 2.5e+017 ohm-cm | ASTM D 257 |
| Dielectric Constant | 3.1 | 1 MHz; ASTM D 150 |
| Dielectric Constant | 3.27 | 60 Hz; ASTM D 150 |
| Dielectric Strength | 509 V/mil | in air, 125 mils; ASTM D 149 |
| Dissipation Factor | 0.0016 | 60 Hz; ASTM D 150 |
| Dissipation Factor | 0.026 | 100 Hz; ASTM D 150 |
| Arc Resistance | 60 - 120 sec | Tungsten (+/- 0.125 inch); PLC Code 6; ASTM D 495 |
| Comparative Tracking Index | 175 - 250 V | (+/- 0.125 inch); PLC Code 3; UL 746A |
| Hot Wire Ignition, HWI | 30 - 60 sec | (+/- 0.125 inch); PLC Code 2; UL 746A |
| High Amp Arc Ignition, HAI | 15 - 30 arcs | Surface (+/- 0.125 inch); PLC Code 3; UL 746A |
| High Voltage Arc-Tracking Rate, HVTR | 80 - 150 mm/min | (+/- 0.125 inch); PLC Code 3; UL 746A |
Thermal Properties |
|
| CTE, linear 68°F | 45 µin/in-°F | Flow, -40F to 200F; ASTM E 831 |
| Specific Heat Capacity | 0.3 BTU/lb-°F | ASTM C 351 |
| Thermal Conductivity | 0.21 W/m-K | ASTM C 177 |
| Deflection Temperature at 1.8 MPa (264 psi) | 300 °F | 0.125 inch, unannealed; ASTM D 648 |
| 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 | 0.058 in. |
Optical Properties |
|
| Refractive Index | 1.6 | ASTM D 542 |
| Haze | 1 % | 0.100 inch; ASTM D 1003 |
| Transmission, Visible | 85 % | 0.100 inch; ASTM D 1003 |
Descriptive Properties | |
| UL File Number, USA | E121562 | |
|
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