| About |
|---|
| DAI-EL® G-621 DAI-EL® G-621 is a bisphenol cure incorporated terpolymer designed for transfer and compression molding applications. DAI-EL® G-621 provides excellent chemical and solvent resistance with very low permeation rates.&&DAI-EL® G-621 DAI-EL G-621 is a fluoroelastomer comprising terpolymer of vinylidenefluoride/tetrafluoroethylene/hexafluoropropylene, contains a curing agent (bisphenol AF) and cure accelerator. This material is of the grade of the highest fluorine content and provides excellent solvent resistance.&& |
| Product Description | |
|---|---|
| Supplier | Daikin Fluorochemicals |
| Generic | 氟橡胶 |
| Material Status | Commercial: Active |
| Features | Solvent resistance,Terpolymer |
| Availabilitys | North America,Asia Pacific |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.92 | g/cm³ | |
| Mooney viscosity | |||
| ML 1+10，121℃ | 50 | MU | |
| Fluorine content | 71 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore A, 25 ℃ | 76 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Yield, 25 ℃ | 16.2 | MPa | |
| 100% strain, 25 ℃ | 3.70 | MPa | |
| Tensile strain | |||
| Fracture, 25 ℃ | 280 | % | |
| tear strength | |||
| 25℃ | 19.6 | kN/m | |
| Compression deformation | |||
| 25℃，70 hr | 23 | % | |
| 100℃，70 hr | 18 | % | |
| 175℃，70 hr | 20 | % | |
| 200℃，70 hr | 29 | % |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| The rate of change in tensile strength in air | |||
| 230℃，70 hr | 5.0 | % | |
| The rate of change in ultimate elongation in air | |||
| 230℃，70 hr | -2.0 | % | |
| The rate of change in hardness of a hardness tester in the air | |||
| Shore A, 230 ℃, 70 hr | 0.0 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Embrittlement temperature | -15.0 | ℃ |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| curing temperature | 170 | ℃ | |
| Curing time | |||
| Curelastmeter | 3.5 | min | |
| Gehman Torsion Test | |||
| T10 | -5 | ℃ | |
| T2 | -2 | ℃ | |
| TR Test | |||
| TR10 | -8 | ℃ | |
| TR70 | -2 | ℃ |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 23°C |
| 3. 25% compression |
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