Eastwood Rust Converter
Product Review (submitted on May 6, 2012):
I used this on the battery tray for my F100. The metal was rusted so bad that the thickness was nearly 1" of flaky rust. After working in rust converter with a stiff brush and numerous applications -until when dry, no more orange color, all black, the metal was so hard and ready for paint that I could not even scratch it with a screwdriver. Now I have the edge of my battery tray is still one inch thick, and rock-hard. Rust never sleeps, convert it!