Properties of Silicone Rubber (SR )
Silicone rubber (SR) is a high-performance elastomer composed of silicon, oxygen, carbon, and hydrogen. Renowned for its thermal stability, electrical insulation, and flexibility over a broad temperature range, SR is widely used in engineering applications.
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The following table provides a comprehensive list of silicone rubber (SR ) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Note: click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Category | Elastomer |
| Density | 1150 kg/m3 |
| Water Absorption | 0.1 %wt/day |
| Mechanical Properties | Metric |
| Ultimate Tensile Strength | 6.5 MPa |
| Shore Hardness (D) | 60 |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.