Transform heavily rusted metal into a paintable surface with Rust-Oleum Stops Rust Rusty Metal Primer. This durable spray primer bonds tightly to rust and promotes topcoat adhesion while blocking moisture that can lead to corrosion. The Custom Spray 5-in-1 lets you choose from five spray patterns with a twist of the dial. Use the high output spray for large, curved surfaces, standard for a traditional experience, low output for details and corners without drips and runs, and vertical or horizontal fans for flat surfaces. Whether you're painting wide spaces, tight corners or textured surfaces, Rusty Metal Primer with Custom Spray 5-in-1 gives you ultimate control for superior results.