The unresolved corrosion problem in Graf Zeppelin's rails

How could Graf Zeppelin's catapult rails have been protected from corrosion?

Possible solutions included better alloys, replaceable rail assemblies, or intensive washing and lubrication, but none was available in the ship's actual system.

Salt exposure made Graf Zeppelin's specialised launch rails a persistent engineering liability. A nickel-based corrosion-resistant alloy would have required later materials technology, while rapid rail replacement or continuous cleaning and lubrication demanded support arrangements not built into the design. Every proposed remedy therefore shifted the problem toward unavailable materials or intensive shipboard maintenance. The rails remained a complex carrier system without a mature operational solution.