| Properties | NR | SBR | NBR | EPDM | CR | SILICONE | VITON |
| Hardness, A | 30-95 | 40-95 | 40-95 | 30-85 | 30-90 | 40-80 | 50-95 |
| Heat Resistance: Max Cont. Deg. C |
75 | 85 | 100 | 130 | 95 | 205 | 205 |
| Max. Intermittent Deg. C |
105 | 115 | 130 | 150 | 125 | 300 | 300 |
| Low Temp Resistance |
-60 | -55 | -20 | -50 | -35 | -60 | -20 |
| Oxidation Resistance |
Fair | Fair | Good | Excellent | Very Good | Excellent | Out-standing |
| Ozone and Weathering |
Poor | Fair | Fair | Out-standing | Very Good | Out-standing | Out-standing |
| Oil Resistance | Poor | Poor | Excellent | Fair | Good | Excellent | Excellent |
| Solvent: - Alcohol |
Good | Good | Good | Good | Good | Good | Good |
| - Acetone | Fair | Fair | Poor | Good | Fair | Fair | Poor |
| - Benzene | Poor | Poor | Poor | Poor | Poor | Poor | Good |
| Chemical: - Acids |
Good | Good | Good | Good | Good | Fair | Excellent |
| - Bases | Good | Good | Fair | Good | Fair | Fair | Good |
| Physical Strength | Excellent | Good | Good | Good | Good | Poor | Good |
| Compression Set | Good | Good | Good | Good | Good | Good | Good |
| Tear and Abrasion |
Excellent | Good | Good | Good | Good | Poor | Good |
| Resilience | Excellent | Good | Good | Very Good | Very Good | Fair | Poor |
| Gases Permeability |
Poor | Fairly Low | Good | Fairly Low | Very Good | Good | Very Low |
| Electrical Strength |
Excellent | Excellent | Poor | Excellent | Good | Excellent | Good |
| Flame Resistance | Poor | Poor | Poor | Poor | Self Extinguishing | Good | Self Extinguishing |
| Water Resistance |
Very Good | Fair | Good | Excellent | Good | Good | Good |
Source:
http://www.pechsiam.com/allaboutrubber_selection.htm




