Car primer: types, properties, application, prices

If the builder has conscientiously treated the foundation, then the house will serve its owner reliably and for a long time. As for the machine, the car primer can also be considered the foundation for subsequent painting operations. Also, such formulations protect the metal parts of the machine from the corrosive effects of corrosion. Car owners who want to get a high-quality paint finish will never save on priming compositions, because they are the basis of everything.

What is a primer?

This is a special compound that is applied to the body before the final painting is done. From paints and enamels this kind of coatings differs by higher adhesion with metal, plastic or putty. It is a reliable basis. Automotive primer is a whole series of products. There are several types of these compositions: primers on epoxy basis, equalizers, sealants and other mixtures.

Epoxy primers

Epoxy type - anticorrosive composition. This type of primer is able to provide a high-quality and reliable protective coating for steel. The epoxy primer contains special resins and high-quality additives. They can be used for all cars. The paint is applied directly to the compound. Epoxy primer for cars is not used on its own. It must be mixed with hardeners. Sometimes you can find these products in cans. The price from 350 rbl. Vika, Россия). For 1.21 kg (brand Vika, Russia).

Reactive soils

These mixtures are also excellent as an anti-corrosion protection. The compositions are based on polyvinyl resins. This car primer is perfectly retained on a wide variety of materials. A high level of versatility can be explained by strong adhesion and great resistance to rust and corrosion processes. Apply these materials are recommended in thin layers. 427 рублей за 0,4 л (бренд Novol, Польша) . The price is 427 rubles per 0.4 liters (brand Novol, Poland) .

Acrylic Compositions

Primer car acrylic is based on one component. Such mixtures are sprayed using special guns. These formulations make it possible to provide excellent adhesion to the metal. Often, these soils are used to level the surfaces. Among the advantages is quick drying. There are also two-component primer based on acrylic resins. This product is highly viscous and allows a thick enough coating to be obtained.

Two-component formulations are excellent for masking significant and minor defects. Such soils have a high level of adhesion with different metals and resistance to corrosion. Two-component acrylic primer can be applied to polyester based fillers, as well as acrylic paints. от 350 до 950 рублей. The price is from 350 to 950 rubles. The volume of cans can be different - 1, 1.2 or 1.3 liters. Novol стоимость выше, нежели у русского Vika. The Polish manufacturer Novol cost is higher than that of the Russian Vika.

Primers for plastics

This is a one-component mixture. The composition is also applied with a gun. It significantly improves the adhesion characteristics of acrylic lacquers and polyurethane coatings. 276 рублей за 0,52 кг ( Vika, Россия) . The price is 276 rubles for 0.52 kg ( Vika, Russia) .

Passivating

These compositions contain chromates of various metals, as well as other substances, due to which the treated surface becomes practically unaffected by the effects of moisture. This group includes such mixtures as GF-021, GF-017 and others. For example, a lead-based composition is used to treat and protect rust from the bottom and wings. The price is from 50 to 90 rubles per kilogram.

Protector mixtures

This product contains dust of aluminum, zinc, lead. These metals have a lower threshold of sensitivity to rust than steel. When exposed to external effects, the protector car primer will be damaged first and the metal will be protected. As an example - EP-057. The range of their prices is very wide - from 250 to 1000 rubles, depending on the manufacturer and the volume of the bank.

Phosphating primer

These formulations contain phosphoric acid. When it interacts with steel, as a result, sparingly soluble phosphates are formed. The primer is laid on the coating with a dense layer, differs by good adhesion. At the same time, its thickness is the most minimal of all. These include VL-02, VL-08, VL-023, VL-025. The mixture penetrates into the metal to a depth of 0.05 μm. This increases the adhesion to the metal body. It is recommended to apply the composition in two layers. 245 рублей за 0,8 кг ( Vika ) . The price is 245 rubles for 0.8 kg ( Vika ) .

Primers for corrosion

They are rust modifiers. It is recommended to apply them directly to the centers of corrosion without any preliminary actions. The primer for rust converts this rust. As a result, a strong film is created on the metal, which will protect the surface in the future. 1000 рублей за 0, 8 л (польский бренд Novol ) . The price is 1000 rubles for 0, 8 liters (the Polish brand Novol ) .

How to choose a primer?

Choose the right product based on the material you need to work with. Naturally, there are other factors, but they are not too significant. Primers for metal parts in their composition are very different from primers for plastic or wood. The composition of the mixture (and the primer is a mixture of several components) is necessarily specified in the instructions. It must be carefully studied before using this or that composition.

One-component products are in fact none at all. In any case, it will be a mixture, whether it's epoxy primer for auto or modifier. As for the functionality of this or that tool, it depends on the species. For example, acrylic blends are practically a universal solution. If you believe marketers, then the range of their application is not limited. But it is best to work with the means that create anticorrosive protection and increase adhesion.

If you need to decide what to handle rusty areas, do not rely on the unique properties of modifiers. Priming on rust will help to get rid of the corrosion itself. However, you will not be able to find out how deeply this product penetrated into the metal. There is no guarantee that the amount of mixture applied to the site affected by corrosion can turn rust into a stable inert layer. In small areas with a low level of "responsibility", modifiers are justified. However, large areas need to be treated differently. As for the use of the primer, it should be noted that it lies on the surface with an invisible layer.

Many motorists believe that the processing process is insignificant. They neglect it, so they buy cheap compounds. Such savings can lead to the need for repainting. Priming car, the price of which is suspiciously low (less than 100 rubles per can), can shrink. In this case there will be errors on the LCP layer. Specialists who professionally work in painting jobs prefer to use expensive mixtures. This saves time and money.

How to apply?

Carpet primer is applied to previously prepared surfaces. This work should be carried out in rooms with good ventilation. It should be taken into account that these compounds are quite toxic. It is better to apply a respirator. If a mixture is prepared, then the consistency should not clog the nozzle of the spray gun. If it is too thick, you can dilute it with a solvent. Too liquid a product is also not very good. There may be streaks.

Before using a freshly prepared compound on the car, it is best to check the intensity of its spreading over another surface. For the processing of small areas suitable automotive primer in spray cans. It does not need to be diluted and much easier to apply. The color is chosen so that it roughly coincides with the hue of the paint, although it can be quite difficult. Unfortunately, it rarely turns out to achieve complete coincidence.

To achieve the similarity of colors, a paint is added to the primer. When the primer layer is applied, according to the manufacturer's instructions, it is necessary to give it time to dry. The treated surface should harden. For different types of soils, drying can take from ten minutes to several hours. At the end of the process, grinding is carried out with abrasive paper with a fine grain of not less than P800. Grinding is performed without water. Most primers are highly hygroscopic, which can lead to additional drying times. After grinding, you can start painting.

Conclusion

Priming is an important stage in the painting of a car. After application, the paint will lie much better on the surface, and the metal will be reliably protected from corrosion. A good result is only a good car primer. The price of the product should be expensive - from 300 rubles per can. This eliminates the risk of double work.