In the Marine industry, cavitation commonly occurs on hydrofoils, rudders, stabilizers, as well as on propulsion systems. Cavitation damage can lead to severe erosion problems and render equipment useless if left untreated. Millions are spent every year on replacing equipment damaged by cavitation. This is not only expensive and time consuming, but the like for like replacement solution will not solve the problem. Repair methods involving welding will not stop the problem from reoccurring either, and the heat introduced can cause HAZ (Heat Affected Zones) and stress corrosion cracking.