There's a particular brass locomotive I have my eye on at the moment, but it's painted for a railroad I don't model. This MRR Magazine thread says soda blasting works well for stripping paint from brass. http://cs.trains.com/mrr/f/88/t/192286.aspx I've been toying with the idea of either having it blasted with baking soda by a local company or doing the blasting myself to remove the old paint, then repainting it for a road I do model. I also have a Atlas undecorated SD35 that a previous owner painted in a rather thick and oddly shiny CNW-inspired scheme... I removed the fuel tank and soaked it in good ol' 91% isopropyl alcohol for about 2 hours. The paint softened enough that I could take it off the larger areas with my fingernail through a nitrile glove. However, a brush did nothing to remove the paint from the nooks and crannies. I have some Testors E.L.O. somewhere that I could also try, but as I was thinking about the brass loco I had a thought: Has anyone tried soda blasting a plastic model to take off old paint, and if so, did it damage the details underneath? Badger and Harbor Freight sell affordable media blasting guns that can use baking soda and run off of a bog-standard air compressor. I don't see the point in buying a blasting gun if I use it only once on a brass model, but if it can take the paint off of plastic models without damaging it it could pay dividends in saving time and the hassle of disposing of used chemicals.