| About |
|---|
| POLIGOM is the trade-mark of our crosslinkable EPDM compound (phthalate plasticizers free). POLIGOM R/75 is a chemically crosslinkable rubber for low voltage cable insulation and sheathing suitable for G7. It is a conveniently grafted compound able to react in presence of moisture and of a catalyst. We normally suggest our catalyst type MAC/202 or MAC/203. FOR SOLAR CABLES INSULATION WE SUGGEST TO USE CATALYST MAC/520 at 7-7,5 %. REACTION BETWEEN GRAFTING AND CATALYST: These two compounds, separately stored, must be mixed before starting extrusion in the ratio: GRAFTING/CATALYST 94/6&& |
| Product Description | |
|---|---|
| Generic | EPDM+SEBS |
| Material Status | Commercial: Active |
| Features | Crosslinked |
| Availabilitys | Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.920 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，5.0kg | 1.0 to 4.0 | g/10min | ASTM D1238 |
| Aging performance | Nominal value | Unit | Test method |
|---|---|---|---|
| The rate of change in tensile strength in air | |||
| 150℃，168 hr | -8.0 | % | IEC 60811 |
| Changes in tensile stress during fracture in air | |||
| 150℃，168 hr | -17 | % | IEC 60811 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| thermosetting | IEC 60811 | ||
| 250℃ | 55 | % | IEC 60811 |
| Residual：250℃ | 0.0 | % | IEC 60811 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | > 1.0E+16 | ohms·cm | IEC 60093 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 92 | ASTM D2240 | |
| Tensile strain | |||
| fracture | 750 | % | IEC 60811 |
| tensile strength | |||
| yield | 14.0 | MPa | IEC 60811 |
| 127℃，40hr | PASS | IEC 60811 |
| Process Conditions | |||
|---|---|---|---|
| Extrusion | Nominal value | Unit | Test method |
| Barrel 1 zone temperature | 160 | °C | |
| Barrel 2 zone temperature | 175 | °C | |
| Barrel 3 zone temperature | 190 | °C | |
| Barrel 4 zone temperature | 205 | °C | |
| Barrel 5 zone temperature | 210 | °C | |
| Nozzle temperature | 215 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 20 N/cm² |
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