Have you ever heard of this product? I've never used it but have heard good things about it. People use it on their cars with no paint.
http://www.thehotrodcompany.com/shopnow/show_search.asp?keyword=gibbs&image1.x=28&image1.y=30
GIBBS Brand
Penetrating Oil & Lubricate
GIBBS Brand Penetrating Oil & Lubricant was invented by Paul Gibbs, a Harley-Davidson mechanic with a background in chemistry. GIBBS Brand was the first penetrant to ever become patented, establishing a new category in the Library of Congress. It is the only penetrant / lubricant / waterproofer available that undercoats metal and can be painted over. Anything treated with GIBBS will not attract dust or dirt.
GIBBS Brand is a revolutionary, patented product that works in all temperatures to clean and eliminate corrosion, to waterproof, and to lubricate mechanical hardware. It's even safe to use on various materials including metal, plastic, vinyl, rubber, and wood! It is highly praised in law enforcement, GIBBS Brand has a well-proven track record with the FBI, custom firearm manufacturers and both the Chicago and Detroit police departments. The ultimate cleaning agent, GIBBS Brand is a supreme penetrating, lubricating, and universal surface conditioning fluid that not only prevents rust, but actually reverses oxidation.
GIBBS Brand Penetrating Oil & Lubricant is a commercial grade product that will replace all of your other penetrants, degreasers, and spray on lubricants.
- Protect & preserve all types of bare metal - the perfect tool for the metal fabricator
- Detailing all vinyl, leather, wood, metal and painted surfaces
- Degrease automotive parts and engine compartments
- Elimination and reversal of rust
- Ultra lubrication of all automobile mechanisms and assemblies
- Frees corroded gears, engines, hinges and bolts
- Remove surface rust from chrome and painted surfaces
- Lubricate & waterproof hinges, latches and locks, machinery and industrial equipment
GIBBS Brand Penetrating Oil & Lubricate contains no abrasives, acids, arsenic, carcinogens, corrosives, graphite, kerosene bases, masking perfumes, pigments, silicones, Teflon or waxes. Available in 12 oz. spray cans and 2 oz. pump spray bottles. The small spray bottle is a perfect size for your tool box and can be refilled from the 12 oz. spray can.