| About |
|---|
| Silopren LSR 2740 TP 3783 is a two-component liquid silicone rubber for injection molding, which offers primer-less adhesion to a wide range of substrates including metals and engineering plastics, but without adhesion to the mold. Full bond strength is generally reached after a short post cure (e.g. one hour at 100 degrees Celsius) or by longer storage at room temperature. This makes Silopren LSR 2740 liquid silicone rubber a good option to consider for cost-efficient manufacturing of high part-quantities in integrated processes, such as multi-component injection molding or insert-molding. Key Features and Benefits Primer-less adhesion to many substrates No special mold treatment needed (final adhesion builds up with time) High temperature stability Excellent stability and flexibility at low temperatures Favorable aging behavior and weathering resistance Good dielectric and mechanical properties Easy to pigment with LSR color-pastes&& |
| Product Description | |
|---|---|
| Supplier | Momentive |
| Generic | 硅橡胶,LSR |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,noise reduction,Good bond,Low temperature toughness,Good stability,Heat Stabilized,Good coloring |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.12 | g/cm³ | DIN 53479 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 38 | DIN 53505 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 9.30 | MPa | DIN 53504 |
| Tensile strain | |||
| fracture | 700 | % | DIN 53504 |
| tear strength | 20.0 | kN/m | ASTM D624 |
| Compression deformation | ISO 815 | ||
| 120℃，22 hr | 15 | % | ISO 815 |
| 150℃，22 hr | 25 | % | ISO 815 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 1.0 | ||
| Component B | 按重量计算的混合比: 1.0 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Vulcanization（175℃） | 10.0 | min |
| Uncured Properties | Nominal value | Unit | Test method |
|---|---|---|---|
| colour | |||
| — | Translucent | ||
| — | Translucent | ||
| viscosity | DIN 53018 | ||
| 20℃ | 610 | Pa·s | DIN 53018 |
| 20℃ | 670 | Pa·s | DIN 53018 |
| storage stability | |||
| 20 ℃ | 4300 | min |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die B |
| 3. Part B |
| 4. Part A |
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