O-rings from SS Scientific are available in a wide range of polymer materials, as well as precious metals including Silver, Gold, and Platinum.
For further information, please contact us: sales@ss-sci.com or +44 1323 638230.
Comparison of Materials Used in O-Ring Construction
| Property | Buna-N | Viton® | Silicone | PTFE | Kalrez® |
|---|---|---|---|---|---|
| Tear Resistance | Good | Good | Poor | Excellent | Good |
| Abrasive Resistance | Good | Good | Poor | Excellent | Good |
| Ozone Resistance | Poor | Excellent | Excellent | Good | Excellent |
| Weather Resistance | Fair | Excellent | Excellent | Good | Excellent |
| Heat Resistance | Fair | Excellent | Excellent | Good | Excellent |
| Chemical Resistance | Fair | Excellent | Good | Excellent | Excellent |
| Oil Resistance | Poor | Excellent | Poor | Good | Excellent |
| Acid Resistance | Fair | Excellent | Good | Excellent | Excellent |
| Alkali Resistance | Good | Good | Fair | Excellent | Excellent |
| Steam Resistance | Fair | Fair | Poor | Good | Excellent |
| Minimum Usable Temp | -55 °C | -55 °C | -85 °C | -80 °C | -35 °C |
| Maximum Usable Temp | 150 °C | 260 °C | 230 °C | 260 °C | 290 °C |
| Colour | Black | Black | Red | White | Black |
| Impermeability | Fair | Good | Poor | Excellent | Good |
| Tensile Strength | Good | Good | Poor | Excellent | Good |