S-Plastics Lexan 920ASR resin is More robust design of standard 900 series flame retardant grade. Internal mold release.
| TYPICAL PROPERTIES (1) | |||
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 62 | MPa | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 90 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 91 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2240 | MPa | ASTM D 790 |
| Hardness, Rockwell R | 118 | - | ASTM D 785 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, notched, 23°C | 640 | J/m | ASTM D 256 |
| THERMAL | Value | Unit | Standard |
| Vicat Softening Temp, Rate B/50 | 151 | °C | ASTM D 1525 |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 137 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 132 | °C | ASTM D 648 |
| Thermal Conductivity | 0.19 | W/m-°C | ASTM C 177 |
| Relative Temp Index, Elec | 130 | °C | UL 746B |
| Relative Temp Index, Mech w/impact | 120 | °C | UL 746B |
| Relative Temp Index, Mech w/o impact | 130 | °C | UL 746B |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.21 | - | ASTM D 792 |
| Water Absorption, 24 hours | 0.15 | % | ASTM D 570 |
| Water Absorption, equilibrium, 23C | 0.35 | % | ASTM D 570 |
| Mold Shrinkage, flow, 3.2 mm | 0.5 - 0.7 | % | S-Plastics Method |
| Melt Flow Rate, 300°C/1.2 kgf | 14.5 | g/10 min | ASTM D 1238 |
| ELECTRICAL | Value | Unit | Standard |
| Arc Resistance, Tungsten {PLC} | 7 | PLC Code | ASTM D 495 |
| Hot Wire Ignition {PLC) | 2 | PLC Code | UL 746A |
| High Voltage Arc Track Rate {PLC} | 3 | PLC Code | UL 746A |
| High Ampere Arc Ign, surface {PLC} | 3 | PLC Code | UL 746A |
| Comparative Tracking Index (UL) {PLC} | 2 | PLC Code | UL 746A |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| UL Recognized, 94V-2 Flame Class Rating (3) | 1.47 | mm | UL 94 |
| UL Recognized, 94V-0 Flame Class Rating (3) | 2.99 | mm | UL 94 |
| Radiant Panel Listing | YES | - | UL Tested |
| Source GMD, last updated:01/04/2000 | |||
| Parameter | ||
| Injection Molding | Value | Unit |
| Drying Temperature | 120 | °C |
| Drying Time | 3 - 4 | hrs |
| Drying Time (Cumulative) | 48 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Melt Temperature | 290 - 310 | °C |
| Nozzle Temperature | 280 - 305 | °C |
| Front - Zone 3 Temperature | 290 - 310 | °C |
| Middle - Zone 2 Temperature | 275 - 300 | °C |
| Rear - Zone 1 Temperature | 265 - 290 | °C |
| Mold Temperature | 70 - 95 | °C |
| Back Pressure | 0.3 - 0.7 | MPa |
| Screw Speed | 40 - 70 | rpm |
| Shot to Cylinder Size | 40 - 60 | % |
| Vent Depth | 0.025 - 0.076 | mm |
| Source GMD, last updated:01/04/2000 | ||
For more information please download the datasheet | |
 | S-Plastics Lexan 920ASR.pdf |
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