| About |
|---|
| Sindustris POM GC241 is an Acetal (POM) Homopolymer material filled with 40% glass fiber. It is available in Asia Pacific for injection molding. Primary attribute of Sindustris POM GC241: Rigid. Typical application of Sindustris POM GC241: Engineering/Industrial Parts&& |
| Product Description | |
|---|---|
| Generic | Paraformaldehyde |
| Material Status | Commercial: Active |
| Features | Good Rigidity |
| Availabilitys | Asia Pacific |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.72 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 7.0 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.30 to 0.70 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，6.4mm | 120 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed, 6.4 mm | 160 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed, 6.4 mm | 165 | ℃ | ASTM D648 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+14 | ohms | ASTM D257 |
| Volume resistivity | |||
| 23℃ | 1.0E+16 | ohms·cm | ASTM D257 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 87 | ASTM D785 | |
| tensile strength | |||
| Yield, 3.20 mm | 147 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 3.20 mm | 3.0 | % | ASTM D638 |
| Bending modulus | |||
| 3.20 mm | 11800 | MPa | ASTM D790 |
| bending strength | |||
| 3.20 mm | 275 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 90 to 110 | °C | |
| Drying time | 2.0 to 3.0 | hr | |
| Recommended maximum moisture content | 0.10 | % | |
| Barrel rear temperature | 180 to 200 | °C | |
| Barrel middle temperature | 190 to 210 | °C | |
| Barrel front temperature | 200 to 220 | °C | |
| Nozzle temperature | 200 to 220 | °C | |
| Processing (melt) temperature | 210 to 220 | °C | |
| Mold temperature | 60 to 110 | °C | |
| Back pressure | 0.00 to 4.02 | MPa | |
| Screw speed | 40 to 75 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 0.20 in/min |
| 3. 0.051 in/min |
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