I'm curious about this too. I have a Lodge Sportsman's Grill (cast iron hibachi) and that beautiful seasoning that works so well on frying pans just burns off the grill body the first time you fire it up. I found one post where someone used 2000º rustoleum spray paint to paint it. Unless someone has a better suggestion here, that's what I plan to go with. The hibachi probably gets hotter than a UDS since it is open and the charcoal is in direct contact with the shell.