| Grade | Mooney Viscosity [ ML 1+4, 100°C ] |
Crystallization Rate |
Other Characteristics |
| WXJ | 42 - 51 | Very Slow | Good low tempetature properties for general use |
| SND5 | 67 - 76 | Very Slow | Higher viscosity version of WXJ |
| SND8 | 32 - 37 | Very Slow | Lower viscosity version of WXJ |
| WRT | 42 - 51 | Extremely Slow | Excellent low temperature properties |
| SND47 | 75 - 85 | Extremely Slow | Higher viscosity version of WRT for high loading use |