View Here : How To Stop Rust
Now that you’ve got a clean surface, you have to protect it to prevent rust. The minute iron or steel is exposed to the air, it begins to rust, so don’t polish the rust off and then let it sit overnight. It began rusting the minute you set the steel wool down. Pre-treat with Ospho
Stopping Rust at Any Stage. The best advice is the most obvious: Wash your car regularly to keep the body and underside clean of the road grime, salts, and dirt that lead to corrosion. The not-so-obvious advice is to check the drain holes along the bottoms of doors and rocker panels, which allow rainwater to flow out.
Salt + Lime: Sprinkle a little bit of salt on the rust, then squeeze the lime over the salt until it is soaking. Let the mixture sit for 2-3 hours and then remove the rust with the lime rind.
Just remove any loose rust and wax, oil or grease. Then brush Rust Encapsulator on (if you prefer, thin up to 20% with lacquer thinner and spray) It seals and stops rust and corrosion from spreading.
Regular maintenance is advised to stop rust forming and halt the progress of any rust that occurred. It’s essential to remove any rust that has formed. A razor blade can be used for small areas. Next any surface grime should be removed using warm water and soap. Lastly a rust resistant coating should be applied to the surface.
Apply rust arrestor to prevent the further spread of rust. Once you have scraped off the rust, apply an over the counter rust arrestor to the area. This will prevent new rust from forming in the area. Most rust arrestors come with an application brush; dip the brush in the rust arrestor and then apply a thin coat to the area that was previously rusty.