I was just flipping through the Princess Auto flyer and saw this product by Permatex called Rust Dissolver. Says its a brush on gel. Anybody know about this stuff? Ive been losing the battle with the surface rust on the Cougar. Grind it off, seal and paint but it only lasted for 3 weeks tops till it came back (almost looks "wet" ). Maybe this stuff could help in the spring when I go at it again?