| About |
|---|
| LSR 4670 is a two-component liquid silicone rubber for injection moulding processes. The material performance is particularly characterised by high reactivity, low viscosity and high tear strength. The LSR 4670 enables particularly the production of parts for healthcare devices covering by USP Class VI such as sealing elements, O-rings, diaphragms, ear plugs, bellows, baby teats, respiratory devices, air vent flaps, tube connectors, catheters and mats. Key Features and Benefits Vulcanisates consisting of LSR 4670 are distinguished by the following properties: Low viscosity Fast cure High tear strength Sterilisable with ethylene oxide, steam and gamma radiation Long service life at dynamic stress Neutral odour and taste High recovery after puncture High temperature stability&& |
| Product Description | |
|---|---|
| Supplier | Momentive |
| Generic | 硅橡胶,LSR |
| Material Status | Commercial: Active |
| Features | Steam sterilized,Low Viscosity,Low odor,Good tear strength,Radiation disinfection,Heat Stabilized,Fast Cure,Ethylene oxide disinfection,High reactivity |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.13 | g/cm³ | DIN 53479 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 69 | DIN 53505 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 9.50 | MPa | DIN 53504 |
| Tensile strain | |||
| fracture | 350 | % | DIN 53504 |
| tear strength | 30.0 | kN/m | ASTM D624 |
| Compression deformation | |||
| 175℃，22 hr | 20 | % | 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 | ||
| Post curing time | |||
| 200℃ | 4.0 | hr |
| 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℃ | 550 | Pa·s | DIN 53018 |
| 20℃ | 550 | 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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