The final leveling becomes a mandatory step no matter what materials are used in the production of walls, no matter whether the surface is plastered. Ignoring this step leads to a spoiled, ugly outward appearance walls. Before proceeding to the leveling itself, the walls must first be primed before filler. But is processing necessary?
A special layer of primer after the finishing coat is required to protect the finish. The same question applies to the need for priming prior to puttying. The use of each composition has certain consequences. Studying information from the manufacturer will help you decide which materials are best for you. But the main advantages of priming are easy to highlight:
- Each layer of raw materials will hold on tightly;
- The bases do not fall off, do not crack throughout the entire area;
- The plastered wall becomes protected from deformation and mildew.
Do I need to primer before puttingty? If you choose the right materials, then the priming determines how high-quality and durable the repair work will be in principle. Each composition with its properties is suitable only for certain surfaces. All of these materials are different from each other:
- brickwork;
- concrete blocks;
- wood;
- drywall.
The porosity and density of these materials is at different levels. However, the initial primer before filling the walls in any case increases the strength. The composition adds adhesion, solidity.
Benefits of using a primer
A modern primer for walls under putty has a unique composition that provides excellent adhesion to almost any material. Plaster or putty adheres perfectly with this treatment method. But main question in what should come first - a primer or a putty? It is worthwhile to understand in more detail the benefits for buyers from the use of materials, this will allow you to find an answer to the question - whether it is necessary to prime the walls before puttingty.
- The primer before filling the walls guarantees the filling of gaps and cracks in the material. This not only contributes to increased adhesion. The consumption of material per unit area is reduced. Compared to primers, putty mixes are much more expensive. But when performing construction work, everyone is usually trying to save money, which is also facilitated by the decision to prime between the layers of putty.
- People often have problems with old stained walls. Contamination reappears after finishing treatments or after puttying. Defects on the surface can disappear if you decide in time whether it is necessary to prime the putty before proceeding to painting. .
- In the case of a preliminary primer on the walls, it is then easier to putty, because in the future, the mixtures quickly fall on the surface that has previously passed through a special treatment. Whether it is necessary to prime after putty is another question.
- When applying the putty, it is possible to prevent biological threats of various kinds, such as rot and fungi, the appearance of other dangerous microorganisms.
Related article: Wall alignment methods for wallpaper
There is nothing to add. Even a beginner in construction work, it becomes clear whether the walls need to be primed after the putty. But remember that you first need to prime, only then putty or putty.
About the correct priming technology
Before applying the primer before applying the wall coat, make sure that all preparation steps have been completed. Otherwise, it will not be possible to achieve high results without additional costs. How to prime the walls correctly? First you need to find out which ceiling primer is suitable in this or that case. It is better to know in advance how to apply the material correctly, what tools are recommended.
Separately, we get information about how long it takes for the surface with the layer to dry. Then unsuccessful visual changes will not accompany the repair. It is easier to figure out how to prime the walls before puttingty , than to correct the mistakes made later.
In the video: is it necessary to prime the surfaces before puttingty?
Surface primers
The primer mixture must be selected according to the base material. This also determines the answer to the question - should it be primed between layers? For different surfaces, different mixtures must be used. In modern industry, many soil compositions are recommended for use in various forms of release. Already have ready-made options, but there is something that you still have to dissolve or mix yourself.
The base material together with the walls determines another equally important factor - this is the time after which the surface is putty after the primer is applied. If you do not wait, you will not be able to achieve the desired result.
Universal mixtures
Most often we are talking about water-soluble acrylic putty compounds with a separate layer. They are versatile and suitable for priming any surface, which has become the reason for their widespread use. This is how any finishing primer works. This the best option in order to prime such surfaces:
- metal where painting is used;
- wood;
- foam concrete ceiling;
- clay walls;
- concrete blocks;
- brickwork (in this case, priming the walls under the putty will not be difficult).
Related article: Advantages of priming over tiling and variety of formulations
Polystyrene and perchlorovinyl primer
Perchlorovinyl compounds can be immediately applied to walls made of bricks or cement plaster, used in advance. The material is also applied over the plaster itself. This is usually done before starting the final finishing. But such a putty primer is used more effectively for working on external walls. This variety is toxic to human health.
Polystyrene is another substance that poses a danger to people, exactly until the moment of shrinkage in full. Users are advised to additionally protect themselves with goggles and gloves.
From phenol
This primer will be the perfect accompaniment for:
- plywood;
- good fiberboard;
Plastering the walls also copes very, very well with drywall. It is convenient to continue after the applied mixture is ready (after 20-30 minutes). Do you need a primer at all? The answer is obvious.
Glyphthal mixes
It is ideal for covering wood, although it can be applied to metal, even painted metal. But it is better not to think about the use of this particular variety in domestic conditions, it is too harmful to humans. Nevertheless, this information will help you figure out which primer is best for walls under putty, because not everything is equally useful for both humans and surfaces.
Alkyd mixtures for wood
The optimal solution for processing and painting wooden walls. Thanks to these formulations, there will be no need to worry about the premature appearance of rot. Putty on the walls also protects against this. You just need to primer consistently and carefully.
What primer to use before putty ? When choosing, the information from the manufacturer on the packaging will become a reference point. It is usually easy to find all the relevant recommendations there, including on the ground, putty .
Preparation process
The sequence of actions will be as follows:
- Removal of dirt from the walls in full. It is necessary to blow off the dust and get rid of adhered particles of the solution itself, remove the old coating to the base.
- At high level humidity of the walls must be dried before using the primer. Easier to use construction hair dryer, otherwise you will not achieve the corresponding result later. Then it doesn't matter what is used: putty, primer .
- Degreasing compounds will help get rid of greasy stains.
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This article is about whether you need to prime the walls before puttingty. We will analyze several finishing scenarios and give a verdict on the use of primer in each case. In addition, we have to get acquainted with the types of primers used and the features of their application. First, let's turn to the basics and find out how the primer differs from putty and other finishing technological processes. The difference is that the soil not a leveling coating... Its purpose is to change the properties of the substrate before applying the next coat: By reducing the hygroscopicity of the surface, we will reduce the consumption of paint or wallpaper glue on it, as well as the absorption of the binder of the next layer of finishing. The fungus is a frequent visitor to freezing walls. Among all the variety offered by the current market, we are interested in only two types of soils. A typical penetrating primer is an aqueous dispersion of acrylic resins. Penetrating primers (primers) based on latex, silicone, or polyvinyl acetate are somewhat less common. How does such a soil work? What is the result? The base layers are bonded together. Some of the pores are filled, which reduces the absorbency of the surface. Dust and small particles not bonded to the base are adhered to its surface, which has a beneficial effect on the adhesion of the next layer of the leveling or decorative coating. The adhesion between the finishing layers is directly proportional to the area of their contacting surfaces. This area is largely determined by the size of the irregularities of each layer - protrusions and depressions. The more there are, the stronger the next layer of finishing material will hold on an uneven base. For dense, weakly absorbent substrates (eg heavy concrete), the surface is relatively smooth and the pore size is minimal. Accordingly, various leveling coatings - plasters and putties - stick to them very badly. Monolithic concrete is not the best object for applying leveling mixtures. Adhesive, or quartz, primers solve this problem as follows: Now it's time to answer a few questions related to the use of primers. If they are completely free of dust, no. By filling the pores of the surface of the brick and masonry joints, the penetrating soil is more likely to reduce the adhesion of the putty to the base. Adhesive primer, on the other hand, will improve adhesion, but there is simply no need for it: cement, gypsum, and acrylic putties already adhere perfectly to the masonry. The answer depends on the composition of the leveling compounds and their quality. The photo shows the walls of the children's room in my house. The finishing was carried out with gypsum plaster on the leveling layer of gypsum plaster. Robust cementitious plaster - ready-to-use filler base. Moisten the wall with water before filling. It will allow the cement particles to penetrate the pores of the plaster to their maximum depth, which will have a positive effect on the strength of the finish. If the putty is of the same type - no, there is not the slightest need for this. It is enough to moisten the previous layer of cement putty with water; on gypsum you can putty without wetting. Seams and screws I usually putty without prior priming. The primer is applied only before finishing, after sanding. But if the entire surface of the gypsum board is putty, the penetrating soil will not hurt: it will allow you to apply gypsum in a thinner and more uniform layer. Yes. These are typical poorly absorbent surfaces. Before filling, they are treated with an adhesive primer. Treatment of a concrete wall with Betokontakt - an adhesive primer from Knauf. Not possible, but necessary. Priming will reduce the consumption of 1 m2 of paint and improve its adhesion to the substrate. This is quite justified from a financial point of view: the price of soil is usually 3-4 times lower than the cost of the same volume of the corresponding class. If you are using latex or silicone paint, make sure that the bonding base of the penetrating primer is the same type. Let's just say it's highly desirable. Priming again will reduce the consumption of glue and improve the adhesion of the wallpaper to the walls. As a primer, you can use not only an acrylic primer, but also wallpaper glue diluted with water. How to prime the wall with your own hands? The foundation must be: Apply the adhesive primer in one layer with a wide brush or with a medium bristle. Before use, the soil must be thoroughly mixed, having achieved an even distribution of quartz sand in it. A penetrating primer on gypsum board and putties of any type is applied in the same way, but on highly absorbent mineral substrates (aerated concrete masonry, weak cement plaster), the instruction is somewhat different. Here, priming is performed in two steps without a break for drying: in this case, the penetration depth of the dispersion will be maximum.
As you can see, the primer is an extremely useful material, but there is not always a need for it. You can learn more about the features and application of primers from the video in this article. I look forward to your comments. Good luck, comrades! When performing preliminary work, beginners often have questions about whether it is necessary to impregnate the plaster before applying the putty mass and whether it is necessary to prime the walls after the putty. In fact, the answer depends on many factors, but in most cases, both there and there the primer will not be superfluous. Why you need it and how to apply it correctly, we will tell you in our article. Wall priming and plastering are almost indispensable steps in preparing surfaces for painting, wallpapering or decorative coatings. Of course, when performing so-called irresponsible work (when the very fact of painting is important, and not its quality), you can do without these operations, but in most cases it is better to complete the full cycle. Typically, the primer is applied between layers of different materials. In this case, these are layers of plaster, putty, etc. The advantages that the soil laid under the finish leveling coating provides are as follows: Note! Do the walls need to be primed after putty is another very topical question. And the overwhelming majority of the masters answer it positively, taking into account the following considerations: Advice! As you can see, priming the walls for putty and painting is quite justified. But in order for this event to give the desired result, it must be carried out in strict accordance with the rules. We'll talk about them in the next section. First of all, we need to decide which primer is best for the walls under the putty. Despite the fact that the range of such compositions is very extensive, only a few options are suitable for our task: Note! The very technology of applying a primer to the surface is not complicated. If you decide to do all the finishing yourself, then this process can be considered one of the least time consuming. Still, there are some rules to follow: Note! Advice! And only after the second layer dries, the wall can be painted or pasted over with wallpaper.
A high-quality primer on the walls before filling and before applying the finishing finish is a guarantee that the repair will be successful, and we will fix its result for a fairly long time. It is not worth saving time and money on this operation: the benefit will be insignificant, but in the future we risk getting a lot of problems that will ultimately result in a complete rework. The video in this article contains several practical recommendations, therefore, it is worthwhile to study it very carefully before starting work. Carrying out self-repairs, both major and cosmetic, we try to save as much money as possible. For example, priming the walls before applying putty or wallpaper may seem completely unnecessary. Is it really? No matter what material the base is made of: brick, concrete, plaster, wood, drywall, the first thing to do is to qualitatively prepare the surface with which you have to work. It depends on how long the decorative coating applied to it will last. That is why the first layer on the base should always be a primer that is able to penetrate deep into the pores and improve the adhesion of materials. The adhesion and fixing properties of the primer very often protect the base surface from damage, for example, when removing old wallpaper. The primer layer promotes uniform application to the surface and absorption of not only putty, but also materials such as wallpaper glue, paints and plasters. As a result, the quality of the finish is improved several times. In addition, the primer is considered an excellent antiseptic, preventing the appearance and growth of various microorganisms on the wall. Of course, a primer for walls under putty may not be performed, but the likelihood that the repair will be performed poorly increases significantly. The wallpaper can sag after a short time, the putty can peel off, and under the influence of moisture, various kinds of defects can appear on the finish coating: cracks, stains, stains, etc. It follows from this that the priming of the walls before plastering or plastering is an additional guarantee of the quality of the repaired surface. Priming the walls with putty reduces the consumption of finishing materials, which ultimately significantly saves the financial resources spent on renovation works... If you figure it out, priming one square meter will cost about $ 1 on average. The price of finishing works using plaster, wallpapering or painting can reach $ 20 per 1 m 2, and this is not counting the cost of materials. And if we exclude the most inexpensive stage, then as a result the amount will still be higher due to the overspending of other materials, and the quality of the work performed will remain in doubt. Conversely, by choosing a good primer, you can save on or other finishing material. It is known that different materials (plaster, brick, concrete and others) have different degrees of porosity, which means that their ability to absorb moisture is also different. Therefore, it is this property that is considered decisive when choosing a primer. Primers with high adhesion characteristics are applied to dense substrates. For plastering walls made of porous material, a primer with deep penetrating properties is suitable. On substrates with an average degree of porosity, universal primers are used. To complete the work, you will definitely need a tray or any other convenient container into which the primer will be poured. For applying the primer to the wall, it is best to use a roller and a light-bristled brush. You will also need a bucket, a sponge, and personal protective equipment (respirator, hat and gloves). Pre-cleaned walls must be treated with a wet sponge to remove fine dust. Then pour the primer into a specially designed container and apply it to the wall using a roller. It is much more convenient to work with a roller than with a brush: the primer mixture lays down on the surface more evenly, while the work process progresses much faster. Priming the walls before puttingtying involves applying a thin layer to the surface. Do not allow smudges and accumulations of the mixture - this can also worsen the quality of further work. It is necessary to apply the primer sequentially: first, movements are made with a roller from top to bottom, then from left to right. It is impossible to properly process hard-to-reach places with a roller, therefore it is best to use a brush for priming corners. After surface treatment it is necessary to wait for the primer layer to dry well. As a rule, the manufacturer indicates the drying time on the packaging. Drying can also be influenced by layer thickness, temperature and relative humidity in the room. This can usually take 10 to 15 hours. After this time, make sure that the primer is completely dry, after which you can proceed to puttying. You already know how the priming is performed, and a description of how it happens is in other articles on our website. Experts say that priming the walls before puttingty is a mandatory step. preparatory work, although to an ignorant person, this work may seem like a waste of time and money. In order to cast aside doubts, you need to understand why this coating is needed, what functions it performs and whether it needs to be primed before putty. Coating a wall with a primer has several goals at the same time. This layer: Mixes that are used for priming walls before puttingty contain cementing components, fine sand. This creates the necessary roughness on a smooth wall, ensures reliable bonding of materials. Otherwise, the applied layer can be fixed poorly, which will cause its cracking, shedding. Applying the putty directly to the wall will require more material consumption, since the mixture will initially be absorbed, filling microscopic voids in plaster, wood, concrete, and other materials. The primer eliminates this process. Anyone who has tried to learn how to properly putty the walls () knows that the most difficult thing in this work is to create a uniform layer. The primer evens out the surface of the wall, which greatly simplifies the task. The putty spreads better over the surface, providing a high-quality result. This material, absorbed into the plaster, the wall, protects it from moisture penetration. Therefore, the finish retains its integrity longer. There are several types of primers, now you will find out which primer to use before puttingty. Purpose, properties of materials depend on the basis of the mixture. She may be: In the rough processing, which is required for leveling a wall made of concrete, gas silicate blocks, bricks, plastered surfaces, a primer created on a mineral basis is used. The addition of cement to such mixtures allows them to increase adhesion and ensure reliable adhesion. Acrylic primers are versatile. They are suitable for all surfaces: An acrylic copolymer base guarantees perfect adhesion. An additional advantage of the material is fast drying, which reduces the time for finishing work. Alkyd-based primers also have universal properties. These mixes are used in both roughing and secondary finishing. Alkyd primers contain anti-rust ingredients and are excellent for metal surfaces. Polystyrene primers can be used on plastered walls. But due to their high toxicity, such mixtures are not used indoors. There are special types of primers, in which components are added to prevent the appearance of mold, prevent damage to the ceiling under the influence of nicotine, etc. The putty is the final stage in preparing the walls for final finishing. These materials are applied in a thin layer. Therefore, if there are deep irregularities on the surfaces, drops are initially performed. Only then is the primer applied. The work will require: If there is contamination on the surface, it must be removed before priming. Then the walls need to be moistened. For this, the surface is treated with a sponge dipped in water. The primer can be applied to the wall with a brush. But the roller can significantly speed up the process. The mixture with its help is distributed more evenly. The brush is used for processing corners and other hard-to-reach places. The resulting layer of primer should be thin. Do not allow material to accumulate in separate places. If smudges appear, they must be removed immediately. The applied wall primer must be completely dry before the walls are putty. The drying time is indicated on the packaging with the product. It may depend not only on the composition, but also on air temperature and humidity.Priming before filling the walls: restrictions in use, types of soil, priming technology
Definitions
Primer types
Penetrating
Adhesive
Areas and features of application
Technology
Conclusion
The need for a primer
On plaster
it is almost always necessary, however, if the putty is applied with a layer of more than 3 mm, then impregnation of the base is mandatory.
Otherwise, there is a high risk that the finishing leveling material will begin to fall off under its own weight.
Putty for painting or wallpapering
The thicker the paint and varnish layer, and the heavier the selected wallpaper, the more reliable the primer you need to choose.
Also, liquid diluted paint or wallpaper glue can be applied to the putty as a fixer (depending on the planned finish).
And yet, such measures are forced, so it is better to use specialized formulations.Processing technique
The strength of the leveling layer must not be lower than the strength of the finish, otherwise cracks will inevitably appear!
When applying the leveling material, we try not to exceed the maximum permissible layer thickness, otherwise no primer will help us - cracks will certainly appear.Output
Why primer walls before plastering - savings or costs?
How to prime walls before puttingty - choice of primer
Priming the walls before puttying - the process in detail
Why do you need a primer before putty
How to prime the walls before puttingty
How to prime walls before puttingty