They have that new metal spray fix now. Anybody seen that. It's like welding up holes, but just spraying hot metal...not sure how good it would work, but interesting.
Just for temp rust stop, blasting is best in my opinion...considering cost of dipping etc. Just put more than plain ol' primer on it when done. Primer is just a big, sandable sponge allowing water to meet up with metal again. Epoxy primer should do the trick, or spray it with something temporary.
