It is known that the main stage preceding the application of paint is coating the base with a special solution that provides better and longer-lasting paint service.
Today there is the possibility of priming the walls directly on the old paint, for which special primers are used. Further we consider their main features, as well as the principles of application and a list of the best manufacturers of the material.
Coverage Functions
What role does the primer on old paint play in construction? First of all, its role is to ensure good adhesion to the surface, so that the paint applied on top of it does not deform, and moreover, does not peel prematurely.
As a result of processing the wall with a primer, the coating becomes more resistant to the influence of negative factors in the form of fungus and other bacteria, as well as water, under the influence of which various spots can form on the surface. Moreover, thanks to this procedure, the surface becomes stronger.
Specialists in the field of construction also note that preliminary priming can reduce the consumption of coloring material.
The basis of the composition
Speaking about the primer for old paint, it should be noted the compositional features of this type of material. It contains components such as oils, glue, bitumen, as well as components that accelerate the drying process of the material. Moreover, coloring pigments, which may not exist in most products, are also often included in the structure of the material.
The main components of the primer for old paint also include substances whose main action is aimed at the formation of a film on the surface.
Specialists in the field of construction quite often recommend giving preference to materials created on an acrylic basis. According to them, it is they who have high adhesive qualities. Moreover, their use is possible on different types of surfaces, which is also a significant advantage of the product against the rest.
How to prime the surface
When applying to the surface of the compositions of the type in question, it is very important to observe certain measures. So, first of all, it should be noted that the composition in question should be applied exclusively to a flat surface on which the paint has not undergone a peeling process. Moreover, it should be applied in only one layer. It should also be noted that the previous coat of paint should also be applied to the surface previously treated with a primer.
Specialists in the field of construction recommend working with primers only at positive temperature indicators. Only in this way the expected effect will be obtained. Under the same conditions, it is recommended to store the product.
How to choose a primer for putty
Is it possible to apply a primer on old paint? Of course. Moreover, it is perfect for smoothing the surface before applying putty, but in this situation, care must be taken to improve the adhesion properties, since the primer on the old paint, as a rule, lays evenly.
In order to prepare the surface for subsequent puttying, it is necessary to give preference to a building material with a high content of quartz. After applying it to the wall, a slightly roughened layer forms, due to which the adhesion performance will improve significantly.
Top manufacturers
The modern building materials market offers a wide selection of primers for old paint. According to reviews of some of them, a number of flagships of sales can be distinguished, which should be paid attention to when choosing a product of this group.
The list of the best primers of this type are:
- VD-AK-0301 (VGT);
- Optilux
- Neomid
- Optimax.
Further we will consider each of the listed means in more detail.
VD-AK-0301
Building material with the same name is recommended to be used before subsequent application of water-dispersion and acrylic paint on the surface treated by it. Its main advantage is that prior to application of the product, preliminary surface cleaning is not required.
Speaking about the rate of consumption of the product, it must be said that it is quite acceptable - about 200 ml per 1 square. m. Some advantages can also be distinguished during the storage of the material - it can withstand up to five freezing and subsequent thawing procedures.
Masters in the construction industry note that the primer on the old VGT paint dries quite quickly - from 2 hours to a day, depending on the air temperature in the room. Also, its composition boasts high resistance to low temperatures - the material can withstand about a month at a mark of -40 ° C.
Optilux
Among the best primers is the composition from the manufacturer "Optilux". Reviews of this product often highlight such qualities as cost-effectiveness (about 100 ml per 1 sq. M), resistance to low temperatures (up to -40 ° C), as well as a wide selection of base materials on which the product can be applied . Practice shows that the considered option of a building product is excellent for coating concrete, as well as substrates pre-painted with varnish and paint. Often, the primer on the old Optilux paint is used before applying wallpaper.
The composition of the material under consideration is based on such components as polymers, various pigments, as well as water-acrylic dispersion. Specialists in the field of construction often note that it is precisely this composition that makes it possible to improve the adhesive performance in a special way.
Neomid
Primer for old paint Neomid is a very popular material that is used for high-quality treatment of previously painted surfaces before applying a new coating layer with paints made on the basis of aqueous emulsions, as well as aqueous solvents.
The popularity of Neomid primers is due to the fact that the composition of this product is distinguished by its versatility in use, as well as ease of application and speed of drying. The composition of this product has a large number of additives, the main purpose of which is to ensure maximum technical characteristics of the building material, as well as giving the product high adhesion properties.
Experts in the field of construction quite often note that it is necessary to apply the primer in only two layers, and before applying the second one, you must wait for the first to dry completely.
Optimax
What primer can be applied on old paint? Masters in the field of construction often draw the attention of consumers to the Optimax product, which, according to them, has a number of advantages.
The considered soil is created exclusively on an acrylic basis. Often in its composition there are coloring pigments that give it a special color. The structure of the building material also contains components that improve its adhesive performance.
Among the significant advantages of the material is the cost-effectiveness of its consumption when used for its intended purpose - per 1 sq. m base requires about 100-200 ml of funds. Moreover, each applied layer dries quite quickly - about an hour.
The manufacturer notes that a positive result from the use of the product is achieved regardless of whether the primer was applied to the polished or unpolished surface.
During storage, the product in question is able to endure up to five cycles of freezing and thawing, without losing its previous properties and positive qualities.
Price of materials
Speaking about the cost of the considered type of building material, it should be noted that it directly depends on the quality of the product and its main components. Practice shows that the price of the primer of the type in question can vary from 200 to 850 rubles per package. When choosing this product, experts recommend giving preference to one that is in the average price range - about 350-400 rubles.