| About |
|---|
| KEPEX 3930GFU is a glass fiber 30%-reinforced PBT/ASA low-warpage grade. It has superior mechanical, thermal, and electrical properties. It also has strong weather resistance. It is suitable for automotive, electrical & electronics, and industrial parts requiring high stiffness, low warpage, and weather resistance.&& |
| Product Description | |
|---|---|
| Supplier | Korea Engineering |
| Generic | PBT+ASA |
| Material Status | Commercial: Negative |
| Features | Good Rigidity,Weather resistance is good,Low warping,Good Electrical Properties,HB |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.48 | g/cm³ | ISO 1183 |
| Shrinkage rate | |||
| MD：3.0 mm | 0.30 to 0.50 | % | Internal Method |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| 23℃ | 7.5 | kJ/m² | ISO 179/1eA |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 210 | ℃ | ISO 75-2/B |
| 1.8 MPa, unannealed | 200 | ℃ | ISO 75-2/A |
| Melting temperature | 220 | ℃ | ISO 11357-3 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 0.80 mm | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 115 | ISO 2039-2 | |
| tensile strength | 130 | MPa | ISO 527-2 |
| Tensile strain | |||
| fracture | 2.0 | % | ISO 527-2 |
| Bending modulus | 8600 | MPa | ISO 178 |
| bending strength | 180 | MPa | ISO 178 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 120 to 130 | °C | |
| Drying time | 3.0 to 5.0 | hr | |
| Recommended maximum moisture content | 0.050 | % | |
| Hopper temperature | 60 to 80 | °C | |
| Barrel rear temperature | 230 | °C | |
| Barrel middle temperature | 240 | °C | |
| Barrel front temperature | 250 | °C | |
| Nozzle temperature | 250 | °C | |
| Mold temperature | 70 to 90 | °C | |
| Back pressure | 0.490 to 0.981 | MPa | |
| Screw speed | 80 to 120 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 10°C/min |
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