One of the final chords of the auto body repair is the painting of individual parts or the entire car. To date, two types of painting are most popular: metallic and acrylic. True, if the car has turned into a pile of scrap metal, it’s too late to paint it. In that case, the car should be recycled: https://scrap4cash.com.
Technology of applying metallic is more complex and requires special careful preparation, which makes it more expensive and prestigious.
After the putty and primer are applied and everything is sanded, it is necessary to degrease the body of the car to improve further adhesion of the paint to the treated surface. The degreasing should be done with a clean cloth moistened with a degreasing agent which can be purchased in a car store and a piece of cloth to wipe the surface dry after the job is done.
Following this operation, it is not advisable to touch the car with your hands to avoid grease marks on it. The degreasing is followed by the stage of blowing the car using ventilation to remove any debris from the car, including the smallest dust particles left after sanding. But even the longest and most powerful blowing is not enough, and therefore it is necessary to wipe the body with a special dusting cloth afterwards.
Now you can start applying the base paint, prepared in advance by mixing the main component and the thinner. It is best to do it in three layers. The first two layers are applied without paying attention to the uniformity of color and emerging streaks. These layers are needed, inter alia, to hide spots of the ground. The third layer is applied after the previous layers are completely dry.
The spraying method is used, because here it is necessary to achieve a perfect uniformity of application. This is to avoid an “applesauce” effect, whereby overlapping two coats of paint results in unevenly painted areas and changes in shade.
In the work, the direction of painting should also be taken into account: large parts – continuously from one edge to another, not from the edges to the center, vertical parts – from the bottom up.
After the paint is applied, you can start varnishing the car. Theoretically, it is very easy to do, but in practice, it turns out that many inexperienced masters have all sorts of leaks and other imperfections of the coating.
The varnish, as well as the base paint, should also be prepared in advance. To do this, first add a hardener to the base, and then a thinner in the right proportions.
Usually the lacquer is applied in one and a half to three layers. Pay attention to the type of varnish: HS or MS. MS is a so called soft varnish, it has a high degree of flow and requires repeated application. HS is a hard varnish, it contains much more solid particles than the previous type of varnish, it can be applied in one and a half layers: the first – a thin, slightly dusty layer, and the second – more “fat”.
HS is used more often, as it is more economical, although MS is easier to process later. After each phase of varnish application, the surface must be dried. Check the degree of drying by touching the surface with your finger: it should not leave a trace of varnish.
Painting and car repairing is not a simple occupation and it is possible to assert that the technology of car body painting or its separate parts is rather specific and requires from the master special attention, patience, professional skills and abilities. After painting the car body is usually polished.
The master’s work also requires the use of special tools and equipment (rubber gloves to withstand solvents, respirator, overalls, special protective shoes), otherwise the result will not please neither him, nor the car owner.