S-Plastics Lexan EX2079X resin is a diffusive, branched polycarbonate grade which enables a medium fine surface texture when extruded in sheet, pipe and profiles. This grade is flame retardant per DIN VDE and contains release agent and UV absorber.
| TYPICAL PROPERTIES (1) | |||
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yield, 50 mm/min | 65 | MPa | ISO 527 |
| Tensile Stress, break, 50 mm/min | 65 | MPa | ISO 527 |
| Tensile Strain, yield, 50 mm/min | 7 | % | ISO 527 |
| Tensile Strain, break, 50 mm/min | 2450 | % | ISO 527 |
| Tensile Modulus, 1 mm/min | 2450 | MPa | ISO 527 |
| Flexural Stress, yield, 2 mm/min | 95 | MPa | ISO 178 |
| Flexural Modulus, 2 mm/min | 2250 | MPa | ISO 178 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched 80*10*3 +23°C | NB | kJ/m² | ISO 180/1U |
| Izod Impact, unnotched 80*10*3 -30°C | NB | kJ/m² | ISO 180/1U |
| Izod Impact, notched 80*10*3 +23°C | 7 | kJ/m² | ISO 180/1A |
| Izod Impact, notched 80*10*3 -30°C | 6 | kJ/m² | ISO 180/1A |
| Charpy 23°C, V-notch Edgew 80*10*3 sp=62mm | 7 | kJ/m² | ISO 179/1eA |
| Charpy -30°C, V-notch Edgew 80*10*3 sp=62mm | 8 | kJ/m² | ISO 179/1eA |
| Charpy 23°C, Unnotch Edgew 80*10*3 sp=62mm | NB | kJ/m² | ISO 179/1eU |
| Charpy -30°C, Unnotch Edgew 80*10*3 sp=62mm | NB | kJ/m² | ISO 179/1eU |
| THERMAL | Value | Unit | Standard |
| CTE, -40°C to 40°C, flow | 7.E-05 | 1/°C | ISO 11359-2 |
| CTE, -40°C to 40°C, xflow | 7.E-05 | 1/°C | ISO 11359-2 |
| Vicat Softening Temp, Rate B/50 | 148 | °C | ISO 306 |
| Vicat Softening Temp, Rate B/120 | 140 | °C | ISO 306 |
| HDT/Be, 0.45MPa Edgew 120*10*4 sp=100mm | 141 | °C | ISO 75/Be |
| HDT/Af, 1.8 MPa Flatw 80*10*4 sp=64mm | 128 | °C | ISO 75/Af |
| PHYSICAL | Value | Unit | Standard |
| Density | 1.2 | g/cm³ | ISO 1183 |
| Water Absorption, (23°C/sat) | 0.35 | % | ISO 62 |
| Moisture Absorption (23°C / 50% RH) | 0.15 | % | ISO 62 |
| Melt Volume Rate, MVR at 300°C/1.2 kg | 3 | cm³/10 min | ISO 1133 |
| Melt Volume Rate, MVR at 300°C/2.16 kg | 6 | cm³/10 min | ISO 1133 |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| UL Recognized, 94V-0 Flame Class Rating (3) | 3 | mm | UL 94 |
| Glow Wire Flammability Index 960°C, passes at | 1.6 | mm | IEC 60695-2-12 |
| Source GMD, last updated:04/07/2008 | |||
| Parameter | ||
| Profile Extrusion | Value | Unit |
| Drying Temperature | 120 | °C |
| Drying Time | 2 - 4 | hrs |
| Melt Temperature | 240 - 260 | °C |
| Barrel - Zone 1 Temperature | 230 - 250 | °C |
| Barrel - Zone 2 Temperature | 230 - 250 | °C |
| Barrel - Zone 3 Temperature | 230 - 250 | °C |
| Barrel - Zone 4 Temperature | 230 - 250 | °C |
| Hopper Temperature | 40 - 60 | °C |
| Adapter Temperature | 230 - 250 | °C |
| Die Temperature | 230 - 250 | °C |
| Calibrator Temperature | 50 - 80 | °C |
| Source GMD, last updated:04/07/2008 | ||
For more information please download the datasheet | |
 | S-Plastics Lexan EX2079X.pdf |
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