LEXAN HFD4472 is a 20% glass filled, medium flow, impact modified, injection moldable grade designed for high flow and
superior surface appearance. HFD4472 has enhanced mold release, impact ductility and broad color space.
Property
| PROPERTIES | TYPICAL VALUES | UNITS | TEST METHODS |
| MECHANICAL | |||
| Tensile Stress, yld, Type I, 5 mm/min | 54 | MPa | ASTM D 638 |
| Tensile Stress, brk, Type I, 5 mm/min | 56 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 5 mm/min | 2 | % | ASTM D 638 |
| Tensile Modulus, 5 mm/min | 5500 | MPa | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 93 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 4900 | MPa | ASTM D 790 |
| Tensile Stress, yield, 5 mm/min | 54 | MPa | ISO 527 |
| Tensile Stress, break, 5 mm/min | 56 | MPa | ISO 527 |
| Tensile Strain, break, 5 mm/min | 2 | % | ISO 527 |
| IMPACT | |||
| Izod Impact, unnotched, 23°C | 800 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 190 | J/m | ASTM D 256 |
| Instrumented Impact Total Energy, 23°C | 30 | J | ASTM D 3763 |
| Izod Impact, unnotched 80*10*3 +23°C | 47 | kJ/m² | ISO 180/1U |
| Izod Impact, unnotched 80*10*3 -30°C | 43 | kJ/m² | ISO 180/1U |
| Izod Impact, notched 80*10*3 +23°C | 18 | kJ/m² | ISO 180/1A |
| Izod Impact, notched 80*10*3 -30°C | 13 | kJ/m² | ISO 180/1A |
| Charpy 23°C, V-notch Edgew 80*10*3 sp=62mm | 21 | kJ/m² | ISO 179/1eA |
| Charpy -30°C, V-notch Edgew 80*10*3 sp=62mm | 13 | kJ/m² | ISO 179/1eA |
| Charpy 23°C, Unnotch Edgew 80*10*3 sp=62mm | 59 | kJ/m² | ISO 179/1eU |
| Charpy -30°C, Unnotch Edgew 80*10*3 sp=62mm | 59 | kJ/m² | ISO 179/1eU |
| THERMAL | |||
| HDT, 0.45 MPa, 3.2 mm, unannealed | 132 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 3.2mm, unannealed | 128 | °C | ASTM D 648 |
Processing
| INJECTION MOLDING | ||
| 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 |
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For more information please download the datesheet |
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LEXAN HFD4472.pdf |
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