Make rust a thing of the past with Care-4-Metal Rust Stop! This 2-in-1 rust convertor and primer is low VOC and lead-free, making it safe for use both indoors and outdoors. Not only does it stop further corrosion, it also creates a stable bluish black film for a durable finish. Plus, it's water-based for easy cleanup and can be used with a variety of top-coats. Say goodbye to red rust for good!