Corrosion: One of the biggest challenges in aviation
Preventing corrosion consistently to keep aircraft flying safely is one of aviation's oldest and most complex challenges. While advancements have been made, multiple protective measures can still fail sequentially over time, allowing moisture to reach the metal and cause dangerous corrosion damage.
Here is an example of failing traditional Corrosion Inhibiting Compound (CIC), flaking away from the substrate due to its proximity to extreme conditions.
An example of fuselage skin & frame corrosion damage. Moisture sequentially penetrated CIC, primer, and chemical conversion.
Fuselage Skin Damage
Here, fuselage skin corrosion damage occurs as exhaust vent moisture sequentially penetrates organic-based topcoat, primer, and chemical conversion.