Technical datasheet
Silopren™ LSR 2740 TP 3783
Supplied byMomentive Performance Materials- Last Updated on Aug 21, 2025
Silopren™ LSR 2740 TP 3783 by Momentive Performance Materials is a two-component liquid silicone rubber. It is easily pigmented with LSR color pastes. Offers primer-less adhesion to a wide range of substrates, high thermal stability, flexibility at low temperature and excellent stability. Exhibits good aging behavior, weather resistance, good dielectric and mechanical properties. It reaches full bond strength after a short post-cure (1 h at 100°C) or by longer storage at room temperature. Designed for processing by multi-component injection, insert molding or overmolding. Silopren™ LSR 2740 TP 3783 is used in elastomeric articles like sealing elements, membranes, vibration dampening elements, spatula or other hard-soft combinations. Complies with USP Class VI, ISO 10993 and FDA 21 CFR 177.2600 regulations.
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Silopren™ LSR 2740 TP 3783 properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Compression Set | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Shore A | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tear Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |

