Technical datasheet
Silopren™ LSR 2660
Supplied byMomentive Performance Materials- Last Updated on Aug 21, 2025
Silopren™ LSR 2660 by Momentive Performance Materials is a two-component liquid silicone rubber. It is not readily combustible, and it does not melt or drip. It is easily pigmented with LSR color pastes. It offers high reactivity, long service life at dynamic stress, high thermal stability, excellent stability and flexibility at low temperature. Exhibits low viscosity, short cycle times, excellent dielectric behavior over a wide range of temperature, good rubber-like properties, high stability to ozone and UV light. Shows resistance to aging and high tear. It reduces vulcanization temperature while maintaining a standard crosslinking rate. Designed for processing by injection molding. Silopren™ LSR 2660 is used in elastomeric articles like sealing elements, O-rings, stoppers, diaphragms, keypads, bellows, catheters, vibration dampers, switch cover, breast shields, spark plug boots and pressure cooker parts. Complies with KTW, WRAS, BfR recommendation, FDA 21 CFR 177.2600 regulations and UL 94 (HB) flame rating.
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Silopren™ LSR 2660 properties
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flame Rating, UL 94 | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| 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 |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
Silopren™ LSR 2660 Processing Guidelines
Other Processing Guidelines
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