Check the listing for details. Corroseal Water-Based Rust Converter & Metal Primer 2-Pack 1 Quart. Condition: New, Made in United States. Listed at 100.99 USD. This all-in-one solution not only converts rust but also prepares the surface for painting, eliminating the need for grinding or sanding. Coverage: 126 sq. ft. per quart. With a user-friendly application process, this rust converter goes on milky white and dries to a solid black, ensuring a clean and effective result.