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| Elastomer | ||||
| Butyl (Isobutene-Isoprene) | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 0.92 *10³ | kg/m³ | 57.4 | lb/ft³ |
|---|---|---|---|---|
| Tensile strength | 20 | MPa | 2900 | psi |
| Elongation | 900 | % | 900 | % |
| Glass transition temperature | -79 | ºC | -110 | ºF |
| Maximum work temperature | 100 | ºC | 212 | ºF |
| Electric resistivity | 109 | Ohm*m | 1011 | Ohm*cm |
| Dielectric constant | 2.3 | - | 2.3 | - |
Applications: inner lining of automobile tires, steam hoses and diaphragms.