| Specimen | Wax (%) | Al grain size (µm) | Pore size (µm) | Pore shape | Volume porosity (%) | Surface porosity (%) | Rockwell hardness (HRH) |
| Pure Al | 0 | 5.5 | 2.7 | round | 2.9 | 1.9 | 80 |
| 1.5 | 5.5 | 14.3 | round | 10.8 | 5.8 | 72 | |
| 10.5 | 5.6 | 19.3 | round and irregular | 23.8 | 12.7 | 61 | |
| 14.5 | 5.5 | 27.0 | irregular | 33.9 | 15.1 | 48 | |
| Al 6061 | 0 | 45.6 | 12.0 | round | 6.5 | 3.5 | 84 |
| 1.5 | 46.1 | 20.0 | round | 13.8 | 10.3 | 67 | |
| 10.5 | 45.3 | 28.0 | round and irregular | 30.9 | 16.0 | 23 | |
| 14.5 | 45.7 | 33.0 | round and irregular | 41.7 | 20.7 | 8 |