In detail: do-it-yourself car painting repair from a real master for the site my.housecope.com.
Hello everyone. I think the title of the article speaks for itself - "stages of painting a car with your own hands, a step-by-step algorithm" so the short announcement of the article accepted on our website will not be ... Directly to the body….
If the car is partially painted, then the choice is not worth it, we take the paint with which the rest of the body is painted, but if the car is painted completely, then you can change the color and type of paint, in other words, how to choose paint for a car, we have a separate article on our website.
At this stage, we inspect a completely clean car, assess the corrosion damage to the body elements, and make a decision on the need for welding.
At this stage, we remove all the components and assemblies that will interfere with us when painting the car. For example, when painting a wing, it is necessary to remove the locker, the turn signal, the headlight, and sometimes the moldings.
When the car is completely painted, it is necessary to remove handles, glass, door locks, mud flaps and wheel arch liners, moldings, antennas, headlights and the like. Disassembly - each time is carried out individually, and what exactly is removed depends on whether the entire body is painted or only part of it.
At this stage, with the help of a grinder, all damaged body panels, or parts of body panels (for example, arches), are cut out. Immediately after welding, the welded seams are ground with a grinding disc on a grinder, and treated with a joint sealant.
If the body parts are damaged from impacts, sometimes they may need to be straightened (this will improve the quality of the repair and reduce the consumption of materials in the future).
Video (click to play).
The reverse side of the panel, after welding and straightening, is processed with Movil, bituminous mastic, or anti-gravel. These coatings are applied in accordance with the instructions for use, in some cases the coatings are applied to a primer, such as anti-gravel.
At this stage, with the help of car fillers, sometimes with the help of epoxy with fiberglass, the original shape of the car is displayed.
Usually, to restore the body shape, they begin with epoxy with glass cloth (sometimes this stage is skipped, especially if the damage is minor), then glass cloth putty, then a soft putty, sometimes later with liquid putty.
Before each application of the putty, the surface is dried, matted with sandpaper, degreased, however, we have a separate article about applying the putty.
Puttying is considered complete when the surface of the putty repeats the original shape of the car and is processed with sanding paper with the number 240-360. When grouting putty between coats, I usually end up with 120 sandpaper.
At the same stage, the matting of the surfaces to be painted is carried out. We usually mate, with water, using sandpaper with a number 180-240 (this is enough for the ground).
The fact is that during painting and priming, a lot of material flies by, respectively, when this material hits the body parts, or finishing elements that do not require painting, they are damaged. To prevent this from happening, pasting is used. Those. with the help of films, newspapers, and masking tape, everything that does not need to be painted is covered.
When gluing under the ground, I prefer the film, as it is faster and easier to glue.
We have a separate article on the choice of the type of soil and its color on our website.
At this stage, primer is applied to all painted surfaces. The primer is applied to a previously prepared surface.
Prepared surface I call old paint, bare metal of the body, or putty, which does not have a gloss and is matted with abrasive paper numbered 240-360. When applied to a glossy surface, the primer will not stick and fall off during the first wash.
Immediately before applying the primer, it is necessary to degrease the surface with a silicone or gasoline remover (we also have a separate article about this).
The primer is applied in accordance with the manufacturer's instructions from a spray gun with a nozzle of 1.4-1.6 mm.
After application, the primer is dried until completely dry.
At this stage, we apply the mat to the ground, sequentially processing it with sandpaper with numbers 240-480 (for acrylic), and 240-800 (for metallic). Matting is better with water, since the speed of work increases, the consumption of sandpaper decreases and the amount of dust in the air decreases.
At this stage, we replace old films on glass and elements, bodies that do not require painting. The fact is that when applying paint, the films will inevitably flutter and the primer that has previously fallen on them will fly off, as you know, according to the law of meanness, it will lay in flakes on fresh, not yet dried paint and ruin the coating.
It is better to re-glue the film with primer before painting! Personally, I prefer to paste over the car with newspapers or wallpaper for painting (they do not flutter as a film and dried paint does not fly off of them)
At this stage, paint is applied to the prepared soil and the pasted car. Immediately before painting, degrease the surface with a silicone remover.
The paint is applied in accordance with the manufacturer's recommendations using a spray gun with a nozzle of 1.2-1.3 mm. Usually the paint is applied in 3-4 layers. If acrylic enamel is used as paint, usually the painting ends at this point and by the 12th stage (drying). Although acrylic enamel can also be applied under varnish.
After the base enamel has dried, in the case of metallic, it is necessary to remove dust from the surface. This is done using a so-called sticky napkin. antistatic.
Before varnishing, the metallic surface is not degreased, since the silicone remover will wash it off! Therefore, varnishing begins 20-30 minutes after the last metallic layer is applied.
The varnish is applied in accordance with the manufacturer's instructions, usually a spray gun with a nozzle diameter of 1.4-1.5 mm is used for varnishing
The varnish is applied in 2-3 layers, depending on the manufacturer and painting conditions.
After applying the last coat of varnish or paint (in the case of acrylic), drying is necessary. Full drying time for acrylic enamels under normal conditions is 24 hours. At elevated temperatures or when using ultra-fast hardeners, the drying time is reduced to 2-6 hours.
During this time, the paint dries completely, but does not "stand up" ie. does not gain final strength. It usually takes 1-2 weeks for the varnish / paint to fully cure.
After the paint has dried, we glue the car and reinstall all previously removed elements (headlights, glass, repeaters, moldings, etc.). Accuracy is important when assembling, as fresh paint is very easy to scratch.
Often, if you painted for the first time on the paint there are gaps, smudges, non-spread shagreen, all these troubles are removed by polishing. Polishing can be carried out no earlier than 2 weeks after painting the car.
If there are smudges on the paint, they are smoked using the technology described here.
The polishing technology is as follows - using sandpaper with water, the car is sanded sequentially with numbers 800-1000-1200-1500 and polished with a polishing wheel and a polishing machine with three numbers of paste. The process is not fast, and we have a separate article about it on our website - polishing.
This completes the painting. If you still have questions about the stages of painting a car, or about how a specific stage of painting is carried out, ask them through the comments.
The sky-high prices for car painting in specialized services make vehicle owners think about doing such work on their own.
How to paint a car with your own hands
This process is not very simple, but quite doable at home.Do-it-yourself painting of a car requires certain equipment and tools, responsible and scrupulous performance of all stages of work, each of which has many of its own nuances and hidden "pitfalls".
You can paint a car with your own hands qualitatively only if there are special conditions and tools.
There are a number of requirements for the premises in which the entire cycle of work will be performed. It should be well ventilated, spacious enough, and bright (daylight) lighting.
Video - a tool for painting a car with your own hands:
The garage must be clean and, if necessary, it must be cleaned in order to avoid dust settling on the freshly painted car.
Video - an overview of grinders for preparing a car before painting: