On how well the master knows how to prepare the car for painting, the final result depends. The paintwork will last a long time if everything is done correctly. However, if the rules are not observed, all work can go wrong. How to prepare the machine for this operation, so you do not have to redo it? We will talk about this in our today's article.
Preparation of the working area
Before the preparation of the car for painting begins, it is important to properly prepare the room, where the machine will then be painted. The main requirement - it must be dry, warm. And of course, there should be no dust inside the room. It is worth remembering that any paint and varnish liquids are highly flammable. This is why there should not be any sources in the room where the car is to be painted on its own, which can lead to a fire.
Required Tools and Equipment
To prepare the car for painting, you need a certain set of equipment. It's a grinder or a Bulgarian. Also in the process will be used pneumatic guns - with their help on the body will be applied liquid putty and primer.
To thoroughly and completely dry the body after treatment, it is recommended to use infrared emitters - this equipment will not only allow the car to dry out evenly, but it will also significantly speed up the process.
Cleaning the surface of the body
Any details that may interfere with the dyeing process (and these are different moldings and other decorative details, locks, any seals) must be dismantled. If this is not done, during the washing process, a large amount of moisture will accumulate beneath these elements, resulting in corrosion and the machine will rot immediately after painting.
Many people neglect this and consider this action optional. But experts who know how to properly prepare a car for painting, it is recommended to do it this way - to make a complete dismantling of all unnecessary elements.
Before you drive the car into the working area, it should be thoroughly cleaned and wiped with a rag. Use a rag that does not leave a pile. The dirt itself will be removed only under the influence of a strong and powerful jet.
How to inspect a car
Experts willingly share with beginners the secrets, how to prepare the car for painting. If you follow all the rules exactly, you can get a good result. At the next stage of work, the car must be carefully inspected.
The body is carefully inspected. During this process, you need to decide which parts will be repainted afterwards. Also during the inspection, the owner will understand which elements should be leveled with putty. Next, you should decide which painting will be performed - partial or full.
To choose a suitable paint for the whole body is simple, but in the case of partial painting everything is much more complicated. If the repainted part is even slightly different, it looks very rough. Therefore, many SRTs have computer systems that allow you to choose the right color.
To fully paint the body of a 4-door sedan, you need 4 kg of primer and 6 kg of enamel. If partial tinting is performed, then for each square meter, 110 grams of enamel and 150 grams of primer are required.
And most importantly, what novice motorists should know about how to prepare a car for painting - both enamels and primers should be of the same manufacturer. Otherwise, there is a risk of tearing off the coatings.
How to protect unvarnished body parts
All elements that are not planned to be painted are carefully closed. For this purpose, professionals recommend using special stencils. They are attached to the right areas for paint tape. For places where there are even lines, you can use a medical plaster - this is the ideal solution. But often in the questions, how to prepare the machine for painting with your own hands, and practice other options - using a special composition.
Degreasing and grinding
The best remedy for this operation is white spirit. After the bodywork is finished, all surfaces to be painted must be wiped dry. The next step in this task, how to prepare the machine for painting, is called abrasion. This is the most difficult process. There are several methods of grinding before painting. The most common are the mechanical and thermal methods.
Features of grinding
The mechanical method is an ordinary grinding using sandpaper with a grain size of 100. Also, a special grain 240 tool is used for the final result.
What is the most important in this process? Observance of rules of gradation of denominations of abrasive. The rule states that the value of the grain level between the initial and the next paper must be at least 100. Otherwise, there is a risk of precipitation of the paint.
A blowtorch is used for this treatment option . Sites that are repainted - burned out.
Other ways to clean the body
Specialists also highlight other methods of cleaning - the use of sandblasting technology and the use of chemicals. Sandblasting is often used to remove corrosion - cleaning is carried out as quickly and efficiently as possible. The method of chemical cleaning will suit, more likely, for removal of a varnish on all surfaces of a body at its ideal condition. Solvents will perfectly cope with any paintwork.
After grinding or any other treatment, another degreasing is performed. Then the body is again wiped off with lint-free cloths. Then you can go to the next step.
The application technology depends on the vehicle and the task. Sometimes the structure is additionally added with fiberglass or aluminum powder. The number of layers is determined by the task. Apply putty on the surface strictly across the dent, while aligning it.
At the final stage, the soil is applied to the body. These compounds will significantly improve the quality of the adhesion of the paint and the painted parts. In addition, primer compositions protect the metal from corrosion.
Primer is performed in three stages. On the first, phosphating is carried out. Then, with the aid of leveling primers, small defects are removed. At the last stage, the soil gives the surface an ideal appearance.
So, we found out how to prepare the car for painting with our own hands in garage conditions.