Dunn-Edwards has introduced Bloc-Rust Premium metal primer in white and red oxide that uses an advanced waterborne alkyd technology. It offers corrosion resistance and adhesion on a variety of interior and exterior ferrous and non-ferrous metal surfaces. This alkyd emulsion formula provides the application properties of an oil-based primer, according to the company. It is easy to apply and has excellent flow and leveling for a smooth finish. Unlike an oil-based primer, it is low odor and fast drying.