| About |
|---|
| No Vacuuming – No Scale – Easy To Use . . . OOMOO® 25 & 30 are easy to use silicone rubber compounds that feature convenient one-to-one by volume mix ratios (no scale necessary). Both have low viscosities for easy mixing and pouring . . . vacuum degassing is not necessary. Both products cure at room temperature with negligible shrinkage. OOMOO® 30 has a 30-minute pot life, with a six-hour cure time. OOMOO® 25 is a faster version, with a 15-minute pot life and 75 minute cure time. For The Novice Mold Maker – OOMOO® silicones do not have great tear strength. They are good for making simple one- or two-piece block molds. If you require a high-tear strength silicone, Mold Max® silicones are recommended. More information on Mold Max® silicones is available at www.smooth-on.com OOMOO® 25 & 30 are suitable for a variety of art-related and industrial applications including making one and two-piece block molds for sculpture and prototype reproduction, casting plaster, resins and wax. OOMOO® silicones are also suitable for electrical potting and encapsulation applications.&& |
| Product Description | |
|---|---|
| Generic | 硅酮 |
| Material Status | Commercial: Active |
| Features | Low Viscosity,Low contractility |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | casting |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.34 | g/cm³ | ASTM D1475 |
| Specific volume | 0.744 | cm³/g | ASTM D1475 |
| Shrinkage rate | |||
| MD | 0.25 | % | ASTM D2566 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 25 | ASTM D2240 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| fracture | 1.65 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 250 | % | ASTM D412 |
| tear strength | 7.01 | kN/m | ASTM D624 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+14 | ohms | ASTM D257 |
| Volume resistivity | > 7.4E+15 | ohms·cm | ASTM D257 |
| Dielectric strength | 14 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 100 Hz | 3.33 | ASTM D150 | |
| Dissipation factor | |||
| 100 Hz | 0.010 | ASTM D150 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| stripping time | 75 | min |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Mixing ratio | 1A:1B by volume 100A:130B by weight | ||
| working temperature | -54 to 204 | ℃ |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD | 5.2E-4 | 1/℃ | ASTM E831 |
| Thermal conductivity coefficient | 0.053 | W/m/K | ASTM E1461 |
| storage stability | 15 | min | ASTM D2471 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
| 3. Cure Time |
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