| Category | Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone , Silicone Rubber |
| Manufacturer | Momentive Performance Materials (Former GE Silicones) |
| Trade Name | Silopren™ |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Momentive Performance Materials Siloprenâ„¢ LSR 2050 Liquid Silicon Rubber - General Purpose.pdf |
| Price | EMAIL US sales@lookpolymers.com |
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Specific Gravity | 1.12 g/cc | 1.12 g/cc | |
| Linear Mold Shrinkage | 0.027 cm/cm | 0.027 in/in | vulcanized 10 sec at 200°C; Without post-cure |
| 0.035 cm/cm | 0.035 in/in | vulcanized 10 sec at 200°C then post-cured |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore A | 51 | 51 | |
| Tensile Strength | 10.0 MPa | 1450 psi | |
| Elongation at Break | 600 % | 600 % | |
| Tear Strength | 35.0 kN/m | 200 pli | Die B |
| Compression Set | 25 % | 25 % | Post cured |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Flammability, UL94 | HB | HB |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Transmission, Visible | 80 % | 80 % | transparent; thickness unknown |
| Compliance Properties | Metric | English | Comments |
|---|---|---|---|
| FDA | Yes | Yes | FDA Indirect food contact - Rubber articles intended for repeated use - FDA Reg 21CFR177.2600 |
| USP Class VI | Yes | Yes | USP Class VI methods: Intramuscular implantation, intracutaneous injection, & systematic injection |
| Processing Properties | Metric | English | Comments |
|---|---|---|---|
| Nozzle Temperature | 20.0 °C | 68.0 °F | cool nozzle and cylinder to prevent premature vulcanization |
| Mold Temperature | 140 - 230 °C | 284 - 446 °F | short vulcanization time required (a few seconds) |
| Injection Pressure | 5.00 - 15.0 MPa | 725 - 2180 psi | depends on feed channel |
| Hold Pressure | 5.00 MPa | 725 psi |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Appearance | Transparent | |
| BfR | product is compositionally compliant | Recommendation XV Silicones; post cured (4h/200°C) |
| European Pharmacopeia | compliant | Eur. Pharmacopeia VI.1.3.2. |
| ISO10993 | yes | 7 ISO 10993 tests applicable to "wet" chemicals |
| Water Regulations | compliant | KTW, WRAS, W270 |