SAE Specifications Products
Pressed wool felts are made from high-quality wool fibers which are mechanically pressed using heat, moisture, and pressure. The process is mandated by SAE standards which determine the wool content, density, and other properties.
| F-1 | F-2 | F-3 | F-5 | F-7 | F-10 | F-11 | F-13 | F15 needled | F-26 needled | F-50 | F-51 | F-55 | |
| ASTM Class | 16R1 | 16R2 | 16R3 | 12R1 | 12R3 | 9R1 | 9R2 | 9R4 | 9R5 | 8R5 | 16R1X | 16R3X | 12R3X |
| 1/16" | * | * | * | * | * | * | * | * | * | * | 0.98 | 0.98 | 0.75 |
| 3/32" | * | * | * | * | * | * | * | * | * | * | 1.425 | 1.425 | 1.125 |
| 1/8" | 2.00 | 2.00 | 1.97 | 1.53 | 1.53 | 1.06 | 1.06 | 1.06 | 1.06 | 0.90 | * | * | * |
| 3/16" | 3.00 | 3.00 | 2.93 | 2.29 | 2.29 | 1.59 | 1.59 | 1.59 | 1.59 | 1.38 | * | * | * |
| 1/4" | 4.00 | 4.00 | 3.90 | 3.06 | 3.06 | 2.12 | 2.12 | 2.12 | 2.12 | 1.81 | * | * | * |
| 5/16" | 5.00 | 5.00 | 4.87 | 3.82 | 3.82 | 2.65 | 2.65 | 2.65 | 2.65 | 2.25 | * | * | * |
| 3/8" | 6.00 | 6.00 | 5.85 | 4.59 | 4.59 | 3.18 | 3.18 | 3.18 | 3.18 | 2.69 | * | * | * |
| 1/2" | 8.00 | 8.00 | 7.80 | 6.12 | 6.12 | 4.24 | 4.24 | 4.24 | 4.24 | 3.63 | * | * | * |
| 5/8" | 10.00 | 10.00 | 9.75 | 7.65 | 7.65 | 5.30 | 5.30 | 5.30 | 5.30 | 4.50 | * | * | * |
| 3/4" | 12.00 | 12.00 | 11.70 | 9.18 | 9.18 | 6.36 | 6.36 | 6.36 | 6.36 | 5.38 | * | * | * |
| 1" | 16.00 | 16.00 | 15.60 | 12.24 | 12.24 | 8.48 | 8.48 | 8.48 | 8.48 | 7.19 | * | * | * |
| Min. % Wool | 95 | 90 | 85 | 95 | 80 | 95 | 87 | 75 | 55 | 45 | 95 | 92 | 75 |
| Color | White | Pink | Gray | White | Gray | White | Gray | Gray | Gray | Gray | White | Gray | Gray |
* Numbers are representing pounds per square yard*