Originally posted by chrishaynesusa:
That is bad advice. Sealed in corrosion just gets worse. Remove the corrosion and prime and paint. you may have to sand into new paint area but paint is the protective covering and can be reapplied. In 20 years of fighting corrosion at sea on multimillion dollar aircraft,I would NEVER recommend sealing it in. One day you will notice a bulge where the corrosion has now worked its way further into the metal.
I agree; almost.
Replacement of a rusted panel is the only "true" way to remove rust.
Huevo stated he has a "small chip with rust on it". Based on that description, I envision a stone chip on his hood with environmental contamination (not really rust) building up on the exposed metal. In which case, I would say clean it up and touch it up so it doesn't crack, flake or peel; done.
Worked fine for me (and my customers) on the several hundred cars & trucks (not aircraft) I've done that on for that past 10 years or so.