How To Repair Oxidized Paint On Vehicles
If you notice faded paint spots on your vehicle, the paint has likely oxidized. The oxidation occurs from a chemical reaction between radiation in the air and paint pigments leaving chalky spots that can't be cleaned with water. A faded paint job makes your vehicle look older and decrease the value. Here are some tips on how to restore oxidized paint on your vehicle.
Make Preparations
Gather an old cotton cloth or T-shirt, soap and water in a container, vehicle polish, and buffer (optional). Work in a dry shaded area preferably around 55-75 degrees which will stop water spots and dust buildup. Wash the vehicle thoroughly and let dry.
Remove the Oxidation
Removing oxidation depends on the level of accumulation. Light oxidation that occurs from leaving you vehicle out in the sun can be remedied with standard paint cleaning and polishing. You usually won't know light oxidation occurs until around a month later. Moderate oxidation is repaired with cutting polish. Heavy oxidation leaves a chalky residue and commonly occurs after a year of being exposed to elements.
Begin removing oxidation with the least abrasive polish. You will need two compounds: polishing compound and rubbing compound. Rubbing compounds are recommended for heavy oxidation. Apply the polish working in small 2 ft by 2 ft areas with a wet cloth and remove it with a dry cloth.
Test the thickness of the compound and your skill on an inconspicuous area. Continue using a more abrasive polish as needed and changing cloths occasionally until the chalkiness is gone.
You may use a high-speed buffer to speed the job, but cleaning by hand prevents swirls. If you use the buffer, wear safety glasses and give it a trial run to get a feel of the motion involved. Do not apply more than two tablespoons of compound to the bonnet. Buff vinyl bumpers and painted side mirrors by hand.
Test the job by spraying down a section of the vehicle with a hose and wipe it dry. The surface should dry smoothly. Any spots you missed will be noticeable after drying.
Apply Wax Coat
After you have removed the oxidation. add a wax coat. A wax coat acts as a protective layer. Apply wax in the shade to keep it from drying too fast. Reapply the wax to your vehicle every month or bi-monthly to prevent oxidation.
Avoid future vehicle paint oxidation by parking your vehicle in a garage or in a car port. If you still cannot remove the oxidation after using commercial products, you will need the vehicle professionally repainted by an auto body repair shop.