BEHR® Interior/Exterior Metal Primer 435 is a rust-inhibitive primer that can be applied over clean and sound rusty metal surfaces while preventing corrosion with minimal surface preparation. This innovative water-based primer features fast dry time,low odor and easy clean up. For use on properly prepared coated/uncoated ferrous and non-ferrous metal surfaces in residential and commercial settings such as: Doors, Windows, Trim, Flashing, Shutters, Fences, Garage/Roll Up Doors, Outdoor Furniture,Railing and Wrought Iron, Beams, Girders, Trusses and Rafters. MPI #107; MPI #134