Check the listing for details. Rust-Oleum 215215 Stops Rust 10.25oz Spray, Black, Rust Reformer, 1 Can. Condition: New. Listed at 17.99 USD. Rust-Oleum 215215 Stops Rust 10.25oz Spray, Black, Rust Reformer, 1 Can Stop rust in its tracks with Rust-Oleum Stops Rust Rust Reformer. A layer of this flat-black coating bonds with rusty metal and instantly transforms it into a non-rusting surface. No need to sand down to bare metal, simply spray directly onto rust. For use on exterior or interior rusted metal surfaces onlyWater-based film forming product converts rust into a paintable surface, there's no need to sand to bare metalDries to touch in 20-40 minutes and covers up to 12 sq ftProtects surface from future rustCreates a flat black finish that can be painted 24 hours following application with any oil-based top coatApply several light coats a few minutes apart to prevent running and sagging