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Properties of some elastomers
| Elastomer | Tensile strength (MPa) | Elongation | Service temperatures (°C) | Resistance to oil and greases | Resilience | Applications |
|---|---|---|---|---|---|---|
| Natural rubber | 28 | 700% | −50 to +100 | Poor | Good | Tyres, engine mountings, fexible hoses, foamed padding, balloons, rubber bands. |
| Styrene-butadiene | 25 | 600% | −60 to +100 | Poor | Good | Tires, transmission belts. |
| Polychloroprene | 25 | 1000% | −50 to +100 | Good | Good | Car radiator hoses, gaskets, seals, conveyor belts. |
| Butyl | 20 | 900% | −50 to +100 | Poor | Fair | Inner tubes, steam hoses, diaphragms. |
| Ethylene-propylene | 20 | 300% | −50 to +100 | Poor | Good | Steam hoses, conveyor belts. |
| Silicone | 10 | 700% | −90 to +200 | Moderate | Good | Electrical insulation seals, shock mounts, vibration dampers. Used in food processing industry and in surgical applications. |
| Polysulphide | 9 | 500% | −50 to +80 | Good | Fair | Printing rolls, cable coverings, coated fabrics, sealants in building work. |
| Styrene-butadiene-styrene | 14 | 700% | −60 to +80 | Poor | Footwear, carpet backing, adhesives. |