S-Plastics Lexan OQ4820 resin is a high viscosity grade with a UV cut-off up to 400 nm and a greater optical purity than standard resins. Fields ofapplication for this material are optical lenses, f.i. in sun glasses and sunvisors market.
| TYPICAL PROPERTIES (1) | |||
| MECHANICAL | Value | Unit | Standard |
| Taber Abrasion, CS-17, 1 kg | 10 | mg/1000cy | S-Plastics Method |
| Tensile Stress, yield, 50 mm/min | 63 | MPa | ISO 527 |
| Tensile Stress, break, 50 mm/min | 70 | MPa | ISO 527 |
| Tensile Strain, yield, 50 mm/min | 6 | % | ISO 527 |
| Tensile Strain, break, 50 mm/min | 120 | % | ISO 527 |
| Tensile Modulus, 1 mm/min | 2350 | MPa | ISO 527 |
| Flexural Stress, yield, 2 mm/min | 90 | MPa | ISO 178 |
| Flexural Modulus, 2 mm/min | 2300 | MPa | ISO 178 |
| Hardness, H358/30 | 95 | MPa | ISO 2039-1 |
| 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 | 70 | kJ/m² | ISO 180/1A |
| Izod Impact, notched 80*10*3 -30°C | 12 | kJ/m² | ISO 180/1A |
| Charpy 23°C, V-notch Edgew 80*10*3 sp=62mm | 75 | kJ/m² | ISO 179/1eA |
| Charpy -30°C, V-notch Edgew 80*10*3 sp=62mm | 15 | 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 |
| Charpy Impact, notched, 23°C | 35 | kJ/m² | ISO 179/2C |
| THERMAL | Value | Unit | Standard |
| Thermal Conductivity | 0.2 | W/m-°C | ISO 8302 |
| CTE, 23°C to 80°C, flow | 7.E-05 | 1/°C | ISO 11359-2 |
| Ball Pressure Test, 125°C +/- 2°C | PASSES | - | IEC 60695-10-2 |
| Vicat Softening Temp, Rate B/50 | 144 | °C | ISO 306 |
| Vicat Softening Temp, Rate B/120 | 145 | °C | ISO 306 |
| HDT/Be, 0.45MPa Edgew 120*10*4 sp=100mm | 138 | °C | ISO 75/Be |
| HDT/Ae, 1.8 MPa Edgew 120*10*4 sp=100mm | 127 | °C | ISO 75/Ae |
| PHYSICAL | Value | Unit | Standard |
| Mold Shrinkage on Tensile Bar, flow (2) | 0.5 - 0.7 | % | S-Plastics Method |
| 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 | 6 | cm³/10 min | ISO 1133 |
| OPTICAL | Value | Unit | Standard |
| Light Transmission | 88 - 89 | % | ASTM D 1003 |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| Glow Wire Flammability Index 850°C, passes at | 1 | mm | IEC 60695-2-12 |
| Oxygen Index (LOI) | 25 | % | ISO 4589 |
| Source GMD, last updated:10/03/1994 | |||
| Parameter | ||
| Injection Molding | Value | Unit |
| Drying Temperature | 120 | °C |
| Drying Time | 2 - 4 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Melt Temperature | 290 - 320 | °C |
| Nozzle Temperature | 280 - 310 | °C |
| Front - Zone 3 Temperature | 290 - 320 | °C |
| Middle - Zone 2 Temperature | 280 - 310 | °C |
| Rear - Zone 1 Temperature | 270 - 300 | °C |
| Hopper Temperature | 60 - 80 | °C |
| Mold Temperature | 80 - 120 | °C |
| Source GMD, last updated:10/03/1994 | ||
| THESE PROPERTY VALUES ARE NOT INTENDED FOR SPECIFICATION PURPOSES. | ||
| PLEASE CHECK WITH YOUR (LOCAL SALES OFFICE) FOR AVAILABILITY IN YOUR REGION | ||
| (1) Typical values only. Variations within normal tolerances are possible for various colors. All values are measured after at least 48 hours storage at 23°C/50% relative humidity. All properties, except the melt volume and melt flow rates, are measured on injection molded samples. All samples tested under ISO test standards are prepared according to ISO 294. |
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| (2) Only typical data for selection purposes. Not to be used for part or tool design. | ||
| (3) This rating is not intended to reflect hazards presented by this or any other material under actual fire conditions. | ||
| (4) Internal measurements according to UL standards. | ||
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For more information please download the datesheet |
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S-Plastics Lexan OQ4820.pdf |
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