| About |
|---|
| Kostrate® PC is a clear polycarbonate resin that combines crystal clarity and rigidity with superior toughness.&& |
| Product Description | |
|---|---|
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Good Clarity,Good flexibility,V-2 |
| Availabilitys | North America |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 300℃，1.20kg | 17 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD | 0.50 to 0.80 | % | ASTM D955 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 140 | ℃ | ASTM D648 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 3.20 mm | V-2 | UL 94 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Transmittance | 87.0 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 122 | ASTM D785 | |
| tensile strength | |||
| yield | 60.3 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 120 | % | ASTM D638 |
| Bending modulus | 2250 | MPa | ASTM D790 |
| bending strength | |||
| yield | 84.8 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 121 | °C | |
| Barrel rear temperature | 249 to 271 | °C | |
| Barrel middle temperature | 260 to 271 | °C | |
| Barrel front temperature | 271 to 288 | °C | |
| Nozzle temperature | 266 to 282 | °C | |
| Processing (melt) temperature | 277 to 293 | °C | |
| Mold temperature | 71 to 93 | °C | |
| Back pressure | 0.345 to 1.38 | MPa | |
| Screw speed | 40 to 80 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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