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Dupli-Color Rust Fix is a spray-on rust converter designed to repair and prevent rust on metal surfaces. This powerful formula transforms rust into a sandable and paintable coating that helps protect against future rust formation. It can be used with body filler, fiberglass, and is perfect for auto, RV, boat, and equipment applications. The black, easy-to-apply formula covers up to 10 square feet per can and dries in just 25 minutes, allowing you to get back to your project quickly. Trust Dupli-Color Rust Fix to provide a durable, long-lasting rust solution for your metal surfaces.