| Material | Ecorr (mV) | Icorr (µA) | bc (mV) | ba (mV) | Rp (Ω∙cm2) |
| Uncoated Al 6451 | −576.4 | 11.1 | 493.5 | 299.0 | 7282.5 |
| Thin-coated Al 6451 | −598.3 | 6.1 | 484.6 | 245.6 | 11,583.3 |
| Thick-coated Al 6451 | −616.7 | 1.3 | 187.9 | 332.9 | 41,151.0 |