Level the putty on the damaged area of the body to give it the required shape and smoothness.
Once you have achieved approximately the desired outline, stop smoothing the putty with a spatula, as if you smooth it for too long, it will begin to harden, stick to the spatula and roll off, resulting in damage to the surface.
Apply the next, thinner layer of putty only after the previous layer has dried and continue until the putty level begins to protrude slightly above the area being treated.
After the putty has hardened, remove any excess with a metal scraper or file.
Carry out further processing using coarse-grained sandpaper at the first stage, then fine-grained. Place the sandpaper on a flat wooden block, otherwise it will be impossible to achieve a smooth surface.
During the final sanding stage, waterproof sandpaper should be periodically moistened with water. This will give the treated putty surface a special smoothness.
The filled dent should be surrounded by a layer of pure metal around the perimeter. To remove dust and grease, rinse the area to be treated with water and wipe with a degreaser.
Spray the area with a thin layer of light-colored primer. This will help to identify all defects in the putty made during processing. Level them with a new layer of putty and sand the surface again.
After this, the repair area is ready for final painting.
Aerosol paint application should be carried out in a warm, dry, windless and dust-free atmosphere.
When painting indoors, wet the floor of the work area with water to prevent dust from becoming airborne. When painting only one panel, the remaining parts of the body should be covered from paint getting on them with newspaper attached with adhesive tape.
Before applying the primer, mix it thoroughly, apply it to a test surface and ensure that it lies evenly. Apply a thick coat of primer by applying several thin coats.
Sand the primed surface with waterproof sandpaper. When doing this, do not forget to spray the area being sanded with water and periodically wet the sandpaper in water.
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Dry the area to be treated before further painting.
Apply a coat of paint with a spray gun. The required paint layer thickness is achieved by applying several thin layers.
Start painting from the center of the surface to be treated and move towards the edges using back and forth movements until the entire surface to be painted and an area approximately 20 mm around it are painted.
Remove the protective film and newspapers 10–15 minutes after applying the last coat of paint.
Allow the new paint to cure for at least two weeks, then use paint refresher or a fine abrasive polishing compound to smooth the edges of the painted area to match the old paint.
Polish the surface.