Characterisation of chromate-free surface protection systems for aircraft application

Based on a combination of corrosion tests and surface analysis, a screening procedure was developed to evaluate the inhibitive efficiency of inhibitor pigments to be used in organic coatings for application on the aircraft aluminium alloy AA2024. In addition, the influence of chromate-free inhibitor pigments on the properties of organic coatings has been investigated using a water based epoxy model primer.