In a previous post I mentioned I am shutting down. My intent was to coat the hopper on the KA-2 with bedliner. Now that I have in vacuumed out and taken off the boiler I can get a good look at it. The bottom is still shiny metal the side have surface rust, probably because I mist the coal with a garden sprayer when filling the hopper.
So maybe bedliner is over kill? I have oil based primer on my shelf and my thought is prep the metal and give it a few coats of primer and maybe a top coat.