I have an old "Ohaus" cast iron pot that I melt my wheel weights in. It's getting kind of cruddy and I'd like to clean it up. The sides of the pot are rough and it tends to hold some black residue that sloughs off the sides as the level of molten lead goes down. It seems like I'm having to do a lot of fluxing and skimming lately. I'm thinking of bead blasting. After I doe this, how can I keep the pot from rusting between uses.
Cloudpeak