| About |
|---|
| KOCETAL® GF305BK is an Acetal (POM) Copolymer product filled with glass fiber. It is available in Asia Pacific, Europe, Latin America, or North America. Characteristics include: Flame Rated High Stiffness High Strength&& |
| Product Description | |
|---|---|
| Supplier | Kolon |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Good Rigidity,HB |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.59 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 8.0 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD | 0.50 | % | ASTM D955 |
| Water absorption rate | |||
| Equilibrium, 23 ℃, 60% RH | 0.20 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃ | 48 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648A | ||
| 0.45 MPa, unannealed | 164 | ℃ | |
| 1.8 MPa, unannealed | 163 | ℃ | |
| Melting temperature | 166 | ℃ | ASTM D1525 |
| Linear coefficient of thermal expansion | |||
| MD | 2.5E-5 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+16 | ohms | ASTM D257 |
| Volume resistivity | 1.0E+14 | ohms·cm | ASTM D257 |
| Dielectric strength | 19 | kV/mm | ASTM D149 |
| Dielectric constant | 3.70 | ASTM D150 | |
| Dissipation factor | |||
| 1 MHz | 6.0E-3 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| M-level | 90 | ASTM D785 | |
| tensile strength | |||
| 23℃ | 128 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 23 ℃ | 6.0 | % | ASTM D638 |
| Bending modulus | |||
| 23℃ | 8000 | MPa | ASTM D790 |
| bending strength | |||
| 23℃ | 189 | MPa | ASTM D790 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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