Teflon (or generically fluoropolymer or non-stick) coatings have an appeal for certain jobs (like the inside of snowblowers and lawnmowers) where manufacturers have chosen not to put them. I've always assumed that the process is beyond small-shop capabilities, and gone in with paint and wax when the rust and sticking of stuff that should slide out is too bad. Is there some system that could work in a small shop, and is accessible to mere humans without DuPont licenses and/or giant heat-treating ovens?
Or particular (easily available) paints that do a better job of approximating the effect, without being members of that family...?