I want to change the keel profile from flat to a more efficient hydrodynamic foil. Does anyone have experience with this?
I bought a coating (Interlux Primocon) to protect the cast iron, but the maker advises against putting anything on top of the coating. I'm afraid that if I cover the bare metal with some sort of thickened epoxy, or other faring compound, water will eventually get underneath it and attack the metal. Thoughts?