What is the surface degreased? How can you degrease the surface of the car before painting?

When you need to paint a fence or metalthe pipe is not at all important how and by what means this work will be done. But it is quite another thing when the question concerns the car. Each owner in the process of painting the body is very important that the result was of the highest quality. Therefore, without the use of special tools can not do.

The first step before the painting work ispreliminary body preparation. In the course of these works, old paint is removed from the car. Then the metal must be degreased and then motorists face problems. Let's try to figure out how to degrease surfaces on modern cars and how to do it correctly in order to get the highest quality result.

What are the means

Зачастую для борьбы с жирной пленкой, которая is on the body, motorists in the old manner use lint-free napkins, treated with a solvent. Experts do not recommend performing this procedure in this way. This option is suitable only when it is necessary to process only a small area. If you look at the range of preparations for the preparatory work before painting, which are produced today, you can allocate a few tools, which degrease the metal surface. These are various solvents and substances of organic origin, emulsions, as well as special solutions, which include synthetic detergent additives.

Experts recommend using exactly the latter. These drugs successfully and confidently win not only a greasy film, but also no less effectively fight dirt and the effects of corrosion.

White Spirit

Один из таких органических растворителей – это familiar to everyone white spirit. It is applied at the initial stage of body treatment. Then a mixture of alcohol and phosphoric acid is used in the finer stages. Such a solution carefully removes traces of grease from a metal surface. But there are other drugs than you can degrease the surface of the car. One such drug is trichlorethylene. This is the most famous representative of the group of organic solvents. It enters into an active reaction when it comes into contact with aluminum bodies. In the course of the reaction, flammable substances are released which increase the risk of fire in case of accidents. It is extremely undesirable to use it.

If trichloethylene reacts with water, thenon the body will form a sticky mass, which is not so easy to remove. If there is no other option than to degrease the surface of the car, then this drug will work. But it works only in the absence of moisture on the coating.

Special preparations for processing

Professionals who have long been engaged incar painting, know and recommend the use of special tools - they are not the cause of fires, and also do not emit any chemical compounds harmful to humans.

But beginners often ignore advice and supposedly"Know" the better to degrease the surface of the car. Often used for this kerosene, gasoline, acetone and even diesel fuel. In fact, all of the above can only be used when the nearest car cosmetics shop is about 100 km away.

Gasoline, diesel, acetone, as an alternative to white spirit

People who have never practiced beforepreparatory work for painting, often confusing white spirit with other substances like gasoline, kerosene and diesel fuel - all these liquids are very similar in smell.

А вот функциональная разница между ними невелика.They are mixtures of hydrocarbons that are produced by distillation of petroleum fractions. All substances perfectly dissolve various mastics, spots of bitumen or fats. But diesel and kerosene are very hard to wash off, although in principle they are suitable for degreasing. They use kerosene on professional car washes, but they use specialized equipment that makes it easy to remove traces of substances and odor. In garage conditions, processing in this way will be detrimental. With special care, you can use acetone, as well as solvents №646 or 645.

Antisilicone

Anti-silicone, than degrease surfaces,are considered the best choice for all ordinary motorists who have decided to prepare the body for painting with their own hands. With these tools you can not only remove greasy films from the surface. Anti-silicone is suitable for cleaning dirt and dust.

The use of these funds is optimal and thenwhen painting only local body painting is planned. In addition to the fact that the drug shows an excellent degreasing effect, it also does not destroy metal or old paint.

Antistatic

How to degrease the plastic surface?Antistatic will be as safe as possible. The fact is that plastic has electrifying properties and attracts dust. This can be a headache for the owner - in such conditions it is very difficult to remove the fatty film. With the help of antistatic this problem is solved very quickly and efficiently. The composition perfectly removes grease and dust.

Alkaline based products

This is another group of drugs than degreasesurface when painting. Under these means are hidden detergents known to everyone, in which there are alkalis. They help not only with high efficiency to perform a degreasing, but also easily remove various contaminants. But use alkaline drugs with caution. When processing will be finished, the car is better to put in a closed clean and dry room, where the body can dry well. In the majority of these mixtures, besides alkalis, various emulsifiers can be detected. These substances interact with fatty foods at temperatures from 60 degrees. After the composition dries, the oily film will remain on the metal - after which it can be easily removed.

If the car owner decided to fight fattyfilms by this method, it is important not to allow strong foaming. Foam bubbles will not be able to provide suitable conditions for starting interaction with fats. The desired effect will not be.

Electrochemical processing methods

This is another option for how to degrease.surface before painting. However, it is not suitable for those who own a garage or home workshop. This process will require industrial frequency electricity. The important point is the polarity. It is determined by the type of metal. The anode is connected to steel degreasing, and the cathode is used for non-ferrous metals.

Multistage cleaning

The first thing to do is bodywork.white spirit. What to do if the surface has signs of corrosion? In this case, it is necessary to treat the surface using phosphoric acid with alcohols. The composition of this is a mixture of ethyl alcohol in a ratio of 15%. A part of water and phosphoric acid in the ratio of 1 to 5 is also mixed. Additionally, an emulsifier is used - the wetting agent OP-7 in the amount of 0.5%. You also need 0.1% nitrobenzene. At home, to obtain this mixture is quite difficult - some substances are not commercially available. It is also worth remembering that the composition is hazardous to health.

Summary

Отвечая на вопрос о том, чем обезжирить surface of the car, you should consider some parameters - the effectiveness of the tool, its price and efficiency. The ideal option is the one that satisfies all these requirements, but it is very difficult to find something similar for sale. In addition to all these factors, it is necessary to take into account the harm that the remedy will have on the metal or on human health. Therefore, it is necessary to obtain maximum information about the drug. It will not be superfluous to buy protective equipment for the respiratory tract - masks and respirators.