Properties of Silicone Rubber (SR )
Silicone rubber is a type of synthetic rubber made from silicon, oxygen, carbon, and hydrogen. It belongs to the broader class of elastomers, which are flexible materials with elastic properties. Silicone rubber is known for its excellent heat resistance, electrical insulation properties, and flexibility across a wide temperature range.
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.