There is a Red Oxide Primer offered by us that is an anti-corrosion coating designed to stop rust formation. It can be applied directly over a rusty surface and is most ideal for exterior use. Red oxide primer can be covered with most conventional topcoats once it fully dries. The primer acts as a preparatory or protective coating that prevents rust formation on the ferrous metal surfaces exposed to humidity and air. The Red Oxide Primer is made available by us that is very effective and suitable for commercial uses.