S-Plastics Lexan SP1240 resin isSuperior performance. MFR of LEXAN 121 and impact performance of LEXAN 141 (16 ft-lb/in (855 J/m)).
| TYPICAL PROPERTIES (1) | |||
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 59 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 50 mm/min | 5.4 | % | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 110 | % | ASTM D 638 |
| Tensile Modulus, 50 mm/min | 2060 | MPa | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 89 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2370 | MPa | ASTM D 790 |
| Hardness, Rockwell R | 124 | - | ASTM D 785 |
| Taber Abrasion, CS-17, 1 kg | 26 | mg/1000cy | ASTM D 1044 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, notched, 23°C | 854 | J/m | ASTM D 256 |
| Instrumented Impact Total Energy, 23°C | 63 | J | ASTM D 3763 |
| THERMAL | Value | Unit | Standard |
| Vicat Softening Temp, Rate B/50 | 131 | °C | ASTM D 1525 |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 116 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 110 | °C | ASTM D 648 |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.18 | - | ASTM D 792 |
| Water Absorption, 24 hours | 0.13 | % | ASTM D 570 |
| Water Absorption, equilibrium, 23C | 0.3 | % | ASTM D 570 |
| Mold Shrinkage, flow, 3.2 mm | 0.5 - 0.7 | % | S-Plastics Method |
| Melt Flow Rate, 300°C/1.2 kgf | 16 | g/10 min | ASTM D 1238 |
| OPTICAL | Value | Unit | Standard |
| Light Transmission | 88 | % | ASTM D 1003 |
| Haze | 1 | % | ASTM D 1003 |
| Refractive Index | 1.582 | - | ASTM D 542 |
| Source GMD, last updated:01/04/2000 | |||
| Parameter | ||
| Injection Molding | Value | Unit |
| Drying Temperature | 105 - 110 | °C |
| Drying Time | 3 - 4 | hrs |
| Drying Time (Cumulative) | 24 | hrs |
| Melt Temperature | 260 - 305 | °C |
| Nozzle Temperature | 255 - 300 | °C |
| Front - Zone 3 Temperature | 260 - 305 | °C |
| Middle - Zone 2 Temperature | 250 - 295 | °C |
| Rear - Zone 1 Temperature | 240 - 280 | °C |
| Mold Temperature | 50 - 80 | °C |
| Back Pressure | 0.3 - 0.7 | MPa |
| Screw Speed | 35 - 75 | rpm |
| Shot to Cylinder Size | 40 - 60 | % |
| Vent Depth | 0.038 - 0.076 | mm |
| Source GMD, last updated:01/04/2000 | ||
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For more information please download the datesheet |
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S-Plastics Lexan SP1240.pdf |
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