AA 59588 Classes and Grades
AA 59588 silicones can belong to six different classes, each with durometer-based grades. ElastoPro makes many of these materials
| Class | Description | Grades |
| 1A | Low temperature resistant | 40, 50, 60, 70, 80 |
| 1B | Low temperature resistant and low compression set at high temperature | |
| 2A | High temperature resistant | 40, 50, 60, 70, 80 |
| 2B | High temperance resistant and low compression set | 40, 50, 60, 70, 80 |
| 3A | Low temperature, tear and flex resistant | 30, 50, 60 |
| 3B | Tear and flex resistant | 30, 50, 60, 70, 80 |
