The chart below serves as a guide to the properties of the most commonly used rubber compounds. In addition, we work closely with a European network of compounders who can produce customised rubber compounds based on specific customer requirements.
RUBBER COMPOUND GUIDELINE
Poor: 1 | Fair: 2 | Good: 3 | Very good: 4 | Excellent: 5
| Natural Rubber | SBR | EPDM | Neoprene CR | Hypalon | Nitrile NBR | Silicone | HNBR | Viton FKM | Fluoro silicone | |
|---|---|---|---|---|---|---|---|---|---|---|
| Hardness range (shA) | 30-95 | 40-95 | 30-85 | 30-90 | 40-85 | 40-100 | 20-90 | 50-95 | 50-95 | 30-80 |
| Colouring | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Heat resistance (°C) | ||||||||||
| - Maximum Continuous | 75°C | 85°C | 130°C | 95°C | 130°C | 100°C | 205°C | 125°C | 205°C | 180°C |
| - Maximum Peak | 105°C | 115°C | 150°C | 125°C | 160°C | 130°C | 300°C | 160°C | 300°C | 200°C |
| Low temperature resistance | -60°C | -55°C | -50°C | -40°C | -25°C | -20°C | -60°C | -30°C | -20°C | -60°C |
| Ozon and Weather resistance | 1 | 1 | 5 | 4 | 5 | 2 | 5 | 4 | 5 | 5 |
| Oil resistance | ||||||||||
| - Diesel oil (20°C) | 1 | 1 | 2 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| - Diesel oil (100°C) | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 5 | 150°C 5 | 150°C 5 |
| - Motor oil (20°C) | 1 | 1 | 1 | 3 | 5 | 5 | 3 | 2 | 5 | 5 |
| - Motor oil (100°C) | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 150°C 5 | 150°C 5 |
| Jet Fuel Resistance (40°C) | 1 | 1 | 1 | 1 | 1 | 2 | 1 | - | 5 | 3 |
| Solvent resistance (20°C) | ||||||||||
| - Alkohol | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 3 | 3 |
| - Acetone | 2 | 2 | 3 | 2 | 2 | 1 | 2 | 3 | 1 | 1 |
| - Benzene | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 |
| Chemical resistance | ||||||||||
| - Acids | 2 | 2 | 3 | 3 | 4 | 3 | 2 | 3 | 5 | 3 |
| - Bases | 3 | 3 | 2 | 2 | 3 | 2 | 2 | 3 | 3 | 2 |
| Physical strength | 5 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 |
| Compression set | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 |
| Tear and Abrasion resistance | 5 | 3 | 3 | 3 | 3 | 3 | 1 | 4 | 3 | 1 |
| Resilience | 5 | 3 | 4 | 4 | 2 | 3 | 3 | 2 | 2 | 2 |
| Permeability to gases | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 2 |
| Electrical strength | 5 | 5 | 3 | 3 | 3 | 1 | 5 | 1 | 3 | 5 |
| Flame resistance | 1 | 1 | 3 | 3 | 3 | 1 | 3 | 1 | 3 | 3 |
| Water resistance | 4 | 3 | 3 | 3 | 4 | 3 | 3 | 4 | 3 | 3 |
