| About |
|---|
| CONATHANE EN-4020 is a filled, flame retardant urethane system formulated for casting high-voltage transformers and other electrical/electronic devices used in demanding outdoor applications. CONATHANE EN-4020 has been tested by Underwriters Laboratories and is recognized to UL 94V-0.&& |
| Product Description | |
|---|---|
| Supplier | Cytec Industries |
| Generic | PUR |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,Flame Characteristics,V-0 |
| Availabilitys | North America |
| Process Methods | casting |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | |||
| — | 1.24 | g/cm³ | |
| — | 1.64 | g/cm³ | |
| Water absorption rate | |||
| 25℃，24hr | 0.28 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 65 to 70 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 19.7 | MPa | |
| Tensile strain | |||
| fracture | 50 | % | |
| tear strength | 61.3 | kN/m |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 4.3E+15 | ohms | |
| Volume resistivity | |||
| 25 ℃ | 7.4E+14 | ohms·cm | |
| Dielectric strength | |||
| 1.59 mm | 20 | kV/mm | |
| Dielectric constant | |||
| 25 ℃，1 kHz | 5.13 | ||
| Dissipation factor | |||
| 25℃，1 kHz | 0.057 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 9.5 mm | V-0 | UL 94 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| 40℃ | 2200 | cP |
| Cured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear Shrinkage | 0.72 | % |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD | 1.7E-4 | 1/℃ | |
| Thermal conductivity coefficient | 1.8 | W/m/K | |
| Thermosetting components | |||
| resin | 按重量计算的混合比: 16 | ||
| Hardening method | 按重量计算的混合比: 100 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Resin |
| 3. Hardener |
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