| About |
|---|
| RTVS 27 is a low viscosity UL 94V-0 Flame Retardant, general purpose, reversion resistant RTV Silicone. With the ability to cure rapidly at elevated temperature, RTVS 27 combines the virtues of low temperature flexibility, excellent electrical properties, high temperature resistance and easy removal for component replacement or repair.&& |
| Product Description | |
|---|---|
| Generic | 硅橡胶,RTV-2 |
| Material Status | Commercial: Active |
| Features | Good Electrical Properties,Low Viscosity,Flame Characteristics,High Heat Resistance,Low temperature toughness,V-0 |
| Availabilitys | North America |
| Process Methods | casting |
| Technical Data | |||
|---|---|---|---|
| MECHANICAL | Nominal value | Unit | Test method |
| Shore hardness | |||
| Shaw’s A | 60 | ASTM D2240 | |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 3.45 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 140 | % | ASTM D412 |
| tear strength | 3.15 | kN/m | ASTM D624 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | 1.0E+15 | ohms·cm | ASTM D257 |
| Dielectric strength | 20 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 1 kHz | 3.00 | ASTM D150 | |
| Dissipation factor | |||
| 1 kHz | 4.0E-3 | ASTM D150 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | V-0 | UL 94 |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| colour | |||
| — | Colorless | ||
| — | Grey | ||
| Density | |||
| — | 1.50 | g/cm³ | |
| viscosity | ASTM D2393 | ||
| — | 2.8 | Pa·s | ASTM D2393 |
| — | 2.9 | Pa·s | ASTM D2393 |
| — | 3.0 | Pa·s | ASTM D2393 |
| Curing time | |||
| 120℃ | 0.25 | hr | |
| 90℃ | 1.0 | hr | |
| 60℃ | 4.0 | hr | |
| 25℃ | 24 | hr | |
| storage stability | |||
| 25 ℃ | 60 to 90 | min |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD | 2.2E-4 | 1/℃ | |
| Thermal conductivity coefficient | 0.31 | W/m/K | |
| Operating temperature | -55 to 204 | ℃ | |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 1.0 按容量计算的混合比: 1.0 | ||
| Component B | 按重量计算的混合比: 1.0 按容量计算的混合比: 1.0 | ||
| Storage period | |||
| 25℃ | 52 | wk |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die B |
| 3. Part B |
| 4. Part A |
| 5. Mixed |
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