- Plastics
Makrolon® M820 GF
polycarbonate; MVR (300 °C/1.2 kg) 3.0 cm³/10 min; high viscosity; 20 % glass fiber reinforced; biocompatible according to many ISO 10993-1 test requirements; suitable for medical devices
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About
Product Types
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Material
- Plastics
- Medical, Dimensionally stable
General Characterization
No data available
Storage Conditions
No data available
Sampling
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Packaging Type
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Technical Properties & Datasheets
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Barrel Temperatures - Front | - | °C | 290 - 330 | |
| Barrel Temperatures - Middle | - | °C | 280 - 320 | |
| Barrel Temperatures - Nozzle | - | °C | 290 - 330 | |
| Barrel Temperatures - Rear | - | °C | 270 - 290 | |
| Dry Air Drying Temperature | - | °C | 120 | |
| Dry Air Drying Time | - | h | 2 - 3 | |
| Hold Pressure (% of injection pressure) | - | % | 50 - 75 | |
| Melt temperatures | - | °C | 290 - 330 | |
| Moisture Content max. (%) | - | % | <=0.2 | |
| Mold Temperatures | - | °C | 80 - 120 | |
| Peripheral Screw Speed | - | m/s | 0.05 - 0.2 | |
| Plastic Back Pressure (specific) | - | bar | 50 - 120 | |
| Shot-to-Cylinder Size | - | % | 30 - 70 | |
| Standard Melt temperature | - | °C | 310 | |
| Vent Depth | - | mm | 0.0025 - 0.075 |
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Burning behavior UL 94 | UL 94 | 3.0 mm | Class | V-1 (Covestro Test) |
| Burning behavior UL 94 (1.5 mm) | UL 94 | Class | V-2 (Covestro Test) | |
| Coefficient of linear thermal expansion, normal | ISO 11359-1,-2 | 23 to 55 °C | 10^-4^/K | 0.65 |
| Coefficient of linear thermal expansion, parallel | ISO 11359-1,-2 | 23 to 55 °C | 10^-4^/K | 0.3 |
| Temperature of deflection under load | ISO 75-1,-2 | 0.45 MPa | °C | 147 |
| Temperature of deflection under load | ISO 75-1,-2 | 1.80 MPa | °C | 142 |
| Vicat softening temperature | ISO 306 | 50 N; 120 °C/h | °C | 151 |
| Vicat softening temperature | ISO 306 | 50 N; 50 °C/h | °C | 150 |
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Flexural modulus | ISO 178 | 2 mm/min | MPa | 5700 |
| Flexural strength | ISO 178 | 2 mm/min | MPa | 155 |
| Izod impact strength | ISO 180/U | -30 °C | kJ/m² | 50 |
| Izod impact strength | ISO 180/U | 23 °C | kJ/m² | 50 |
| Izod notched impact strength | ISO 21305/based on ISO 180/A | 23 °C/ 3 mm | kJ/m² | 10 |
| Izod notched impact strength | ISO 21305/based on ISO 180/A | -30 °C/ 3 mm | kJ/m² | 8 |
| Nominal strain at break | ISO 527-1,-2 | 5 mm/min | % | 4 |
| Tensile modulus | ISO 527-1,-2 | 1 mm/min | MPa | 5800 |
| Yield strain | ISO 527-1,-2 | 5 mm/min | % | 3 |
| Yield stress | ISO 527-1,-2 | 5 mm/min | MPa | 91 |
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Melt viscosity | b.o. ISO 11443-A | 1000 s^-1^/ 300 °C | Pa*s | 650 |
| Melt volume-flow rate | ISO 1133 | 300 °C/ 1.2 kg | cm³/10 min | 3 |
| Molding shrinkage, normal | ISO 294-4 | 60x60x2 mm³ | % | 0.5 |
| Molding shrinkage, parallel | ISO 294-4 | 60x60x2 mm³ | % | 0.3 |
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Injection molding - Injection velocity | ISO 294 | mm/s | 200 | |
| Injection molding - Melt temperature | ISO 294 | °C | 310 | |
| Injection molding - Mold temperature | ISO 294 | °C | 110 |
| Property Name | Standard | Test condition | Unit | Value |
|---|---|---|---|---|
| Density | ISO 1183-1 | kg/m³ | 1340 | |
| Water absorption (equilibrium value) | ISO 62 | 23 °C; 50 % r. h. | % | 0.11 |
| Water absorption (saturation value) | ISO 62 | Water at 23 °C | % | 0.28 |
Downloads
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Technical Data Sheet
-
Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
