X-o rust brush-on enamel, gloss finish, grass green, matches john deere green, 1/2-pint – 776573 x-o rust farm & implement direct to metal enamel is a great paint for any metal machinery, equipment, tools, tanks, and more. Features excellent color retention. Water resistant and prevents rust. For metal substrates only. Interior or exterior metal surfaces, such as file cabinets, fencing, metal, drains, piping, and tools. Not recommended for roofs.