2. Using the applicator, apply the filling paste to the prepared surface. Run the applicator over the surface of the putty to achieve the desired contour and even out the surface of the putty. When the original level and contour are reached, stop working with the paste. If you continue, the paste will stick to the applicator. Continue to apply thin coats of paste at 20 minute intervals until the filler is level with the surrounding metal.
3. When the putty has hardened, the excess can be removed with a file. Next, you need to use sandpaper, gradually increasing its grit, starting with paper with a grit index of 180 units and ending with waterproof paper with a grit index of 600 grit. Always wind the sandpaper around a rubber or wood block, otherwise the surface of the putty will not be completely flat. When sanding the putty surface, waterproof sandpaper with a grit index of 600 units must be periodically moistened with water. This will help achieve a very smooth surface.
4. The repair area should now be surrounded by a ring of bare metal, which in turn should be surrounded by good, undamaged paint. Rinse the area to be repaired with water until all sanding dust has been removed.
5. Apply a thin coat of primer to the entire cleaned surface. This will help to detect all defects on the surface of the putty. Correct the detected defects with fresh putty or lacing and clean the surface again with sandpaper. Repeat the procedure for applying primer and putty until you are satisfied with the quality of the putty surface and paint edge. Rinse the surface with clean water and let it dry completely.
6. The repair area is now ready to be painted. Spray painting should be carried out in warm, dry, calm weather when there is no dust in the air. These conditions can be achieved if you have access to a large production facility. However, if you have to work outdoors, you need to choose the day of painting very carefully. If you are working indoors, spray the floor with water. This will help you nail down any dust that might otherwise fly into the air. If laying the repair is on one body panel, cover all surrounding panels. This will help you minimize the slight mismatch = paint color. Decorative trim parts such as chrome trim, door handles, and so on, also need to be masked or removed. For masking, use sticky tape and several layers of paper.
7. Shake the paint thoroughly before spraying, then practice spraying to learn how to do it correctly. Apply a thick coat of primer to the surface to be repaired. It is better to apply several thin layers than one thick one. Using 600 grit sandpaper, sand the surface of the primer until it is very smooth. During this operation, the surface to be treated must be thoroughly wetted with water. Sandpaper also needs to be periodically lowered into the water. Allow primer to dry before applying additional coats.
8. Spray paint on the top layer, increasing its thickness by applying several layers. Start spraying paint from the center of the repaired area, and then, using circular motions, treat the entire repaired area, as well as approximately 5 cm of the surrounding paint. Remove all masking material 10-15 minutes after applying the last coat of paint. Let the new paint dry for at least two weeks, and then use a very fine sanding compound to make the transition from the new paint to the original paint imperceptible. At the end of the work, apply a layer of wax.