Better to burn out than it is to rust


I had my Jeep wrangler repainted. They ground most of the rust off, but must have missed some. Several months after the repaint the same old rust spots began to bubble back up from under the paint. For the life of me I can't figure out what caused the bubbles from under the inside of the paint, except that they didn't get all the rust and it continued to work. It's possible the chemical make up of the paint also allowed the rust spots to come back after they failed to remove it all? I'm not sure but there seem to be plenty of examples of places where Oxygen can't get (the metal under the new paint) but that rusts from the inside out. Maybe in the paint though there was enough oxygen left from the old rust pockets.



If you want to temp fix it put "Rust Converter" on it. The Rust Convert chemically changes rust into black primer.