jumpinjoe
Hellcat
That's true. There is a good selection of arc rods that will weld cast iron ..... some much better than others. Good technique comes more into play than when welding with Tig. As long as the rods are 'low hydrogen', AC or DC+ they will typically work for most general repairs, but cooling becomes an even more critical issue.I've used nickel rods to repair cast iron. I used to do this when machinists forgot to stop their cutting soon enough. I'd build it up and they would cut again.