How to putty drywall? How to putty drywall under the wallpaper. Plasterboard putty under the wallpaper: we do the work with our own hands Correct plasterboard plasterboard walls

It is difficult to imagine construction and renovation work in which drywall was not used. Internal partitions, boxes for water and sewer pipes, multi-level ceilings, arches, decorative elements in the interior are made of it. Plasterboard sheets level the walls, significant floor defects.

Smooth, broken, rounded plasterboard constructions should be putty before painting or wallpapering. How to properly putty drywall, not being a master of finishing, we will cover in this article.

Instruments

For independent work you will need:

foam rollers and priming brushes,
stainless steel spatulas 10, 20 and 40-50 cm wide,
containers for mixture and water,
sanding float with fasteners for mesh or paper,
sandpaper or sanding net,
mixer-attachment for a drill,
construction knife
rule length 1.5-2.0 m
respirator, goggles, rubber gloves.

Materials for work

deep penetration soil,
putty,
serpyanka or perforated paper tape for seams,
perforated metal and plastic corners,
fiberglass,
glue for fiberglass.

Putty

Every novice finisher has a question, what is the best way to putty drywall. For work, use a rough and finishing plaster, cement or polymer putty. There are dry mixes and ready-made solutions on sale.

Attention ! Following the principle: "like connects with like", it is preferable to apply gypsum plaster on drywall.

For finishing rooms with high humidity, cement, lime compounds or polymer putty are suitable.

For the main finish, craftsmen use Fugenfüller gypsum putty or cement Hercules, for the top layer - finishing polymer Bergauf or Ceresit.

Surface preparation

The quality of the finish depends on how well the drywall is ready for the putty layer. To do this, you should:

Padding

The purpose of applying the primer is to create a polymer film that prevents moisture penetration into the depths and possible delamination of the paper coating of drywall, as well as to increase the adhesion of the putty to the base.

Anyone can use a deep penetration primer, but professionals recommend Ceresit CT17 primer. It creates a durable film. It is recommended to apply it in 2-3 layers, each next one is applied after the previous one has completely dried.

Solution preparation

Gypsum putty is very demanding on the cleanliness of the container in which the mixture is prepared, and it sets quickly enough. The solution should be prepared for 0.5-1 hour of work according to the instructions on the package.

Pouring dry powder into water, add it until dry islands appear on the surface. This indicates that the proportions are met. Stir the mixture quickly until smooth and free from lumps and leave for 5 minutes. The putty should be of sour cream thickness. After that, stir again and you can start working.

Attention ! It is not recommended to stir the gypsum plaster solution after preparation.

Preparation of corners and joints

Plastering drywall begins with the preparation of corners and joints. Here you need a narrow spatula and a small amount of mortar.

What kind of putty to putty drywall seams? To do this, use the composition of Knauf Fugen. The embroidered seams are filled with a mixture, then strips of special self-adhesive mesh or perforated paper are glued on and smoothed with a spatula. The mesh is 5-10 cm wide for a strong grip.

After the putty has completely dried, you need to check if the threads of the reinforcing mesh are sticking out, remove them with a knife, carefully cut off the irregularities of the filling with a spatula and prime everything.

Puttying

Plasterboard on ceilings and walls is done differently depending on the type of finish. If you plan to stick wallpaper, the base and finishing layer of putty will be enough. For finishing for painting and Venetian plaster, you will need fiberglass.

How to putty the ceiling

The ceiling can be putty immediately with a finishing putty in 1-2 layers. Work is carried out from any wall in good lighting.

Important ! If you plan to apply two layers, then they should be applied perpendicular to each other, so that the latter is from the window along.

This is done as follows:

A small amount of mortar is placed on a wide spatula and it is applied to the surface with wide movements from the wall towards or away from yourself. After a sufficient area has been processed, the layer is finally leveled with a rule moistened with water. Craftsmen do not use the rule, but it will come in handy for a novice finisher. This is how the entire surface is treated.

If dark spots of drywall do not show through from under the layer of dried putty, this can be limited. If the layer is uneven, you need to apply a second one. For this, irregularities are removed with a sanding mesh, the ceiling is primed and putty again. The dried surface is carefully sanded, dust is removed and a primer is applied to it for painting.

How to putty drywall under the wallpaper

To make it clear how to properly putty drywall, a video from experienced craftsmen will help you understand all the subtleties.

You will need a narrow and wide spatula. In order for the putty to be of high quality, consider a few subtleties:

the spatula should not have bent corners, notches and other defects on the working surface;
in the process of work, you need to ensure that lumps of dried solution and other solid particles do not get into the solution and onto the spatula. They will leave streaks on the surface that are difficult to handle;
the remaining mortar should be removed from both sides of the surface of the working trowel. It is better to throw the dried solution into the trash.

Operating procedure:

place a small amount of mixture evenly on the edge of the working surface of the wide spatula with a narrow spatula,
starting from the corner, apply it in a wave-like motion to the wall and carefully smooth it with a trowel in different directions. You can make semicircular movements, wavy, but not straight. It is better to start applying from a clean area, moving on to the treated part;
collect the rest of the solution with a narrow spatula and again evenly distribute over the surface of the wide one, adding a fresh portion;
remove defects in the dried layer with a sanding mesh or sandpaper;
clean the surface from dust with a large brush or rag;
apply primer;
on the primed surface in the same way apply a layer of finishing putty, treat after drying with a painting sanding mesh number 180-220 in circular movements;
clean the surface from dust and prime.

How to putty drywall for painting and decorative plaster

When finishing plasterboard walls and ceilings in new brick houses, as well as for painting or decorative Venetian plaster, the surface should be reinforced with thin fiberglass.

It will prevent cracks and other defects from appearing. The fiberglass canvas is glued to the sanded and primed layer of putty using PVA glue or for glass fiber as follows:

glue is applied to the wall in an even layer,
impose an overlap (3-5 cm) of glass-fiber canvases, trying to ensure that their joints do not fall on the drywall joints,
the canvas is carefully leveled with hands and a spatula, removing air from under it,
after sticking two canvases, the place of the overlap is cut using a construction knife, the surplus of the canvas is removed, the joints are leveled,
the canvas is again covered with glue on top and smoothed with a spatula.

A thin layer of finishing putty is applied to the dried glue, carefully leveled and sanded with a paint net. After sanding and dust removal, the surface is covered with a deep penetration soil 1-2 times.

Plasterboard walls prepared in this way will be flat, smooth, ready for covering with any finishing materials.

Renovation specialists were divided on how to putty drywall. Some argue that full putty of drywall sheets is pointless, while others strongly recommend processing the entire surface before finishing. Both opinions take place, but the choice of a solution depends on whether paint is applied to the wall, tiles are laid or wallpaper is supposed to be pasted. Before painting the wall, puttying must be performed without fail, since any paint will emphasize the smallest roughness of the drywall. In the case of dense wallpaper or tiles, you can get by with a starting putty, but only if the surface of the walls does not have significant defects.

The main criterion for choosing a putty for drywall is the composition of the mixture, which is made on the basis of gypsum, cement and polymers. When choosing a mixture, it is necessary to take into account the type of room in which the finishing work is carried out and the operating conditions.

Plaster based putty. It has a fine-grained structure, therefore it is often used for finishing puttying. The use of this material in wet rooms is not recommended, since gypsum absorbs moisture well, which cannot be prevented even with a primer.
Cement mixture. In places with a high humidity, this composition is considered the most optimal, due to its resistance to moisture. In addition, cement provides high strength and durability of the coating. For the finishing of living rooms, it is better not to use cement putty - it gives a slight shrinkage, as a result of which microcracks appear.
Polymer mixture. The composition based on polymers is considered the most plastic, provides a perfectly smooth surface and is better than other mixtures applied to walls. The polymer putty is sold ready-made, so there is no need to pre-mix the components and worry about the correct consistency of the composition. It is also recommended to use an elastic polymer putty for finishing plasterboard ceilings.

Surface preparation for puttying

The question of how to properly putty drywall is considered one of the most popular in many construction forums. Professional finishers say that the quality of the finishing coating largely depends on the correct preparation of the walls for puttying, therefore, before starting work, you need to perform the following activities:

Thoroughly clean the base of the wall from grease, dust and dirt after installation work. At this stage, it is necessary to remove the remnants of the old finish, wallpaper and paint peeling, for this you can use sandpaper.
Check the screws for strength. If the screws protrude above the wall surface and cling to the spatula, they must be screwed in tightly to create the most even working area.
Important! It is better if the screws are recessed as much as possible in the drywall sheets. But it happens when they are twisted too deep, then they need to be unscrewed, and new screws should be screwed in next to them, and then the holes should be putty.
Treat the cleaned surface with a primer, which will significantly improve adhesion, and the putty in this case will adhere more reliably to the surface. In order for the primer mixture to dry, you need to wait about a day, only after that you can start puttingtying.

Features of putty for wallpapering

In order for the appearance of the walls and ceilings after finishing to completely suit you, you must definitely putty drywall, paying attention to all the nuances of working with this material. Plasterboard surface treatment before wallpapering has its own characteristic features. For thick and massive wallpaper, it is best to choose mixtures with a coarse-grained structure, the surface will be slightly rough, which will greatly facilitate further pasting. In this case, finishing puttying can not be carried out, since thick wallpaper will independently mask all minor defects, but you still cannot do without starting putty. For thin paper wallpaper, finishing puttying is necessary, otherwise all the flaws of the drywall will appear immediately after drying.

The choice of the putty mixture and the method of its application (number of layers) depends on the type of wallpaper pasted on the walls

Some finishers putty only the joints of drywall sheets, but this is not recommended. It is necessary to putty the entire surface of the walls, otherwise all areas on which the putty was applied will stand out significantly both in daylight and in artificial light.

Putty for painting

The preparation of the plasterboard wall before painting is carried out using the same technology as for pasting wallpaper, the main thing is that the surface is even, without potholes and cracks.

So that the layers of the base and finishing putty do not crack and peel off, a reinforcing mesh is mounted on the dried surface before starting work. After painting, all the flaws of the wall will be clearly visible, especially for light shades. Therefore, all the seams between the sheets, holes and traces of self-tapping screws are carefully leveled with the base mixture, after which the entire surface is primed.

A layer of primer after finishing puttying is necessary so that the paint is not absorbed into the drywall and the coating does not deform. The joints of drywall sheets without a factory edge should be cut off yourself in order to obtain high-quality reinforcement of the seams.

Advice! The primer should be distributed over the entire surface of the drywall, water-soluble compounds are used as the material, which are absorbed into the upper layers and do not penetrate inside. The moisture resistant protective shell will effectively prevent the paint from absorbing.

Plasterboard corners

For maximum finishing results, all seams, corners and joints must be carefully putty. Plasterboard corners are putty according to a special scheme, which involves the following rules:

Drywall is a fragile material, so you need to work as carefully as possible. For processing outside corners, it is recommended to purchase special perforated corners made of plastic or metal, which will smooth out sharp corners and protect them from damage.
The inner corner must be glued with a serpentine, and a separate tape is taken for each side of the joint.
A thick layer of putty is applied on both sides of the corner joint and pressed into the corner using an angled spatula, after which excess mixture is removed and another layer is applied.

There is also another technology for puttying corners, in which first one side of the corner is processed according to the standard scheme, and after it dries, the putty is applied to the other side.

Basic filling technology

The question of how to putty drywall remains one of the most relevant for those who first decided to start repairing. For correct puttying, several spatulas are used - they apply the material with a large one and apply it to the walls, eliminate minor defects on the fresh layer with a small rubber tool, treat hard-to-reach areas with narrow ones, level the putty at the joints of the walls with a corner.

The final layer of putty is applied after the starting layer, primer and thorough sanding are completely dry. In this case, the material must be spread in a thin, neat layer up to 2 mm so that a smooth surface is obtained. To do this, each portion of the mixture is applied with smooth overlapping movements, while the spatula must be held at an angle of 30-35 degrees to the wall.

If, after the finishing putty has hardened, there are voluminous cavities, then it is necessary to apply another layer of the mixture - this is done until the most even plane is formed. The walls to be painted should not be ribbed, therefore, for a better result, experts recommend using a lamp that will help identify all the shortcomings.

After the putty has dried, all irregularities and imperfections are eliminated with zero sandpaper to a state of absolute smoothness. The treated walls must be left for several days, and after that you can start painting, wallpapering or applying decorative coatings.

Putty is an obligatory stage in the preparation of walls and ceilings for painting or wallpapering. The surface is leveled with a putty mixture, all defects and imperfections are removed on it. Do-it-yourself drywall putty is a simple but painstaking process. Some features of materials, process technology and rules will be discussed in the article.

Despite the flat surface of the sheets, after installation, a large number of joints and fixation points remain that require sealing. For this, it is important, first of all, to choose the right material for repair.

Drywall putty mixtures are:

Starting. They have a large grain size, are used to level surfaces (see Aligning walls with putty according to all the rules).
Finishing... They have a fine grain, they are used to apply the last layer, creating a perfectly flat surface for painting or wallpapering.
Universal... These are both leveling and decorative materials. But they are used only in the absence of large defects on the surface.

The main compositions and their features are presented in the table:

Type of putty	Features:
	Perfect white color. Good ductility, which increases the resistance of the composition to cracking. Environmental Safety. It allows air to pass through, while absorbing excess moisture, and, if necessary, giving it away, which allows the room to always maintain a suitable microclimate. Excellent adhesion to other materials. Plaster putty is easy to apply and sand. Dries quickly enough. It is used for leveling, sealing joints, cracks. Lack of composition: Cannot be used with high humidity indoors, due to its solubility in water
	Does not allow moisture to pass through. Not afraid of temperature changes. Perfectly seals chips, cracks, cracks and seams. Levels surfaces well. The main binder in the composition is cement, and aggregates such as clay, limestone with chemical additives increase the positive properties of the mixture: strength and resistance to cracking Tip: When choosing a cement putty, you should pay attention to the brand of cement in its composition. Its adhesion to other materials and compressive strength depend on this.
	This is a new material for wall decoration. It differs from the previous ones: Greater versatility. Polymer putty has a high degree of elasticity. Durability. Disadvantage: higher price than gypsum and cement coatings

The putty can be ready-to-use or dry mix.

Do-it-yourself plastering of drywall is best done with solutions prepared independently from dry mixes.

There are several reasons for this:

Stored for a long time.
The quality of the material is not affected by temperature fluctuations.
Can be diluted and used in certain volumes.

How to choose and dilute the putty correctly is shown in detail in the video in this article.

Surface preparation

This stage includes the following operations:

The protruding heads of the fasteners are screwed to failure or flush with the surface.

Having finished the walls and ceiling inside the apartment with sheets of drywall, no owner will stop arranging the rooms. Bare walls just ask for finishing. Drywall sheets themselves are smooth and even, but unfortunately they are not monolithic, but have certain dimensions. The wall looks uneven after installation. The formed joints, the places where the drywall is attached to the frame - the heads of the screws - need to be putty. Before finishing the walls, do-it-yourself plasterboard plastering - the work is not difficult, but rather painstaking. The first step is to choose a suitable filler.

Choosing a drywall putty

There is a sufficient selection of dry building mixtures in building materials stores. There are so many of them that you can't immediately figure out what kind of putty to putty drywall. Some materials are intended for finishing ceilings and walls, others for cracks and chips. Still others are used exclusively for decorative purposes.

It is more profitable to take dry mixtures, because they last a long time. Both in warehouses and shops, and after purchase. The quality of dry putties is not affected by the temperature storage conditions, while ready-made putties are subject to all kinds of changes, not for the better. In addition, dry mixes can be dosed: grease somewhere, level them somewhere, and leave most of them for emergency work.

Depending on the materials, putties are:

Cement;
Plaster;
Polymeric.

All three materials are suitable for drywall putty, but not in every room. If you need to putty the kitchen or bathroom, it is better to use a cement putty, since gypsum does not withstand changes in humidity: when it dries, the gypsum putty will crack.

Polymer putties are versatile and flexible. They are better suited for plasterboard fillers. In addition, their consumption is much less.

Various characteristics of putties, which determine their price and scope, are not critical for working with drywall at home. Qualities such as frost resistance or fire resistance are not so important.

The best option would be to buy a universal dry mix.

Primer

To prepare the drywall for further actions, the wall is primed. Apply under the primer evenly over the entire area of \u200b\u200bthe drywall. Water-soluble mixtures are used as a primer, which impregnate the top layer of dry plaster without penetrating inside. This forms a moisture-resistant film that will prevent wallpaper glue or paint from absorbing.

Important: When priming drywall, no alkyd primers are used because they can deform the cardboard layer. Delaminated paper forms bubbles that crack and hang in tatters. There is no need to talk about any strength of fastening of clean finishing materials under such conditions.

The primer is diluted in a basin, then it is applied with a roller along the entire wall: from top to bottom. The thickness of the soil layer should not be less than 0.03 mm.

Preparation of drywall for putty

Before the putty, the plasterboard wall is leveled so that the surface becomes perfectly flat. It makes no sense to putty the wall with bulging screw heads. It is necessary to tighten them all to failure. However, no extra effort should be made to avoid sinking the bolt heads. Then you get pits. If, during the installation process, the screws are screwed in so that their caps are sunk deep into the drywall layer, the screws are unscrewed and new ones are screwed in their place - longer.

At the joints of the drywall sheets, there should be no delamination of the outer sheet from the gypsum filling. If the paper peels off, you must carefully tear it off with your hands and cut it with a knife to the very spine. Then sand the resulting wrinkle with sandpaper. Otherwise, the putty may peel off following the loose paper. Cracks will appear in the place of the formed bubbles after the putty dries.

Plasterboard for painting

The preparation of drywall is carried out in a similar way as for gluing wallpaper. It is important that the wall is perfectly flat, without dents and protrusions.

cutting corners without edge

The seams between the drywall profiles are carefully leveled with putty, the surface is primed. The paint is absorbed into the cardboard in the same way as the wallpaper glue. If this impregnation reaches the inner layer, the outer - cardboard - is deformed. Crack or swell with bubbles.

The joints of drywall sheets that do not have a factory edge must be cut off yourself at an angle of 45 0. Only under such conditions will reliable reinforcement of the seam be obtained.

Putty technology

When the primer is dry, it's time to move on to the putty. An uncomplicated putty technology is produced in several stages.

gluing serpyanka

First of all, a fiberglass mesh - serpyanka - is glued to all joints and corners. The joint tape has a self-adhesive surface, so this process does not take long. It is important to glue the serpyanka so that on both sides of the seam or corner, there is half of the tape. That is, the seam was exactly in the middle of the serpyanka.

The putty is diluted in small quantities, because it dries quickly. Adding water to a dried mixture changes all its qualities. Having calculated the approximate volume of a disposable putty, you need to dilute exactly this amount, and not a gram more. For half an hour of work. After this, the putty will no longer be suitable for use.

Sealing drywall joints

To seal the joints to honey with sheets of drywall, you need two spatulas: medium and wide. 12-15 cm and 30-35 cm, respectively. It is much more difficult to work with a trowel and a float, and the work is not as accurate as we would like. What works well for concrete, drywall doesn't go without a hitch.

To properly putty the drywall joints, it is necessary to evenly apply the reinforcing layer throughout the entire seam. It is easier, of course, to first pick up a small amount of putty with a narrow spatula and apply it to the seam. Then, with a wide spatula, stretch the filler as far as possible. Having got used to it, you can pick up immediately with a large spatula and spread it all over the seam. If it turns out to accurately fill the joint, the reinforcement process goes as it should.

An important condition for the primary putty is the correct reinforcement of the joints, as a result of which no irregularities and roughness should form. Otherwise, after drying, it is very difficult to sand powerful streaks. Sandpaper and rasp won't help. More serious abrasive tools can destroy not only the dried putty, but also the drywall sheet.

Putty screws

The screws are putty in a crosswise manner. The putty is applied along and across, so the grooves of the self-tapping caps are better filled and their heads are completely hidden.

Corner putty

Puttying the corners is a little more difficult, because it is not a flat vertical surface, but sheets of drywall converging at right angles. It is not immediately possible to bring both sides of the corner evenly. In this regard, corner sealing is carried out in two stages.

First, one side of the corner is putty according to the usual rules.
After half of the joint has dried, the second side of the corner is putty.

So, having stood for some time, we get an even, neat seam. A few drops of patience while filling the corners can save a lot of nerves and energy that could be spent on rework.

Basic filling technique

The actual puttying begins after the roughing of the seams has dried and the corners are filled.

often aluminum profiles for drywall corners are equipped with a reinforcing mesh

Smooth outer corners: window and door slopes - fixed with an aluminum construction corner. It is attached to a putty or construction stapler, which is much more convenient and neat. No splashes or debris underfoot. The corner is cut to the specified dimensions and attached along the perimeter of the window and door openings.

Having strengthened the metal corners, the putty is pressed into the corrugated holes of the profile with a small spatula, so that all the holes are filled. This achieves the rigidity and hardness of the outer corner, which subsequently guarantees its strength to mechanical stress. Then the surface of the mortar is leveled with a wide spatula. To do this, it is necessary to carry a spatula along the edge of the corner and the surface of the drywall sheet.

If you have to putty the arched passages, a special plastic corner is used. It is somewhat thicker than aluminum, so after the corner is fixed with a stapler, it is necessary to putty it in two stages. You should not try to stick the putty as much as possible, then you get an uneven surface. It is recommended to apply the first layer, filling in all the holes, wait for the drying time, and then apply a layer of putty again, aligning the joint of the corner with the drywall surface. With this approach, the putty layer is almost perfectly even.

Finishing plaster of plasterboard

The final stage of preparation of drywall walls allows you to achieve flawless evenness of surfaces for subsequent finishing.

All irregularities and roughness must be smoothed out with sandpaper. When working, you must use a respirator. The wall surface is also treated with emery cloth - "zero". After cleaning, the contact of the finishing putty with the wall, which was previously treated with a primer, is improved.

Fiberglass or the same putty that was used at the starting stage is suitable for finishing. The spatula is used wide. It is necessary to dilute the finishing putty to the consistency of sour cream. This will allow the putty to be applied evenly over the entire drywall surface. Apply a layer of finishing putty as thin and evenly as possible.

Putty consumption per square meter of drywall

The consumption of the putty depends on the nature of the surface to be treated. If there are many defects, then more putty is used. Taking into account the preliminary priming of the wall, the consumption of putty per square meter of drywall is calculated one to one, plus one hundred grams. Easy to remember: 1.1 x 1 m 2. This formula is suitable for cement-based dry putties.

It is even easier when using gypsum plaster: one to one when plastering walls and ceilings.
Glue-based putty is consumed even less - half a kilogram per square meter is enough.

To calculate the approximate amount of putty, you need to know the surface area of \u200b\u200ball walls in the room. It's easy: each drywall sheet has certain dimensions, they are indicated on the label. All the numbers are summed up, and the total area for the finishing putty is obtained.

For starting putty, the same amount of material is taken, with a small margin. However, in any calculations, it is important to follow the technology. You need to dilute the mixture in such an amount that it is enough to work for half an hour or less. If you hesitate or get distracted from work, then it is recommended to dispose of the dried putty. You shouldn't use it. It is undesirable to redo work already done. Either the surface of the wall will not be flat, as expected, or in the distant period finishing materials will begin to fall off from the drywall due to the lack of a strong coupling.

Finishing putty does not end there. After the wall has dried, it is necessary to prime it again.

Only after completing all the stages of preparing drywall for finishing, you can be sure that it will be securely fixed. In addition, finished drywall sheets are easily cleaned of old wallpaper. Nothing falls off or cracks. After removing the old canvas, you can paste the new wallpaper. At the same time, you do not need to re-putty the drywall walls.

Video instruction on drywall putty

The fastest and most popular method for leveling walls and ceilings is drywall sheathing. It allows you to quickly finish finishing the premises. The most important thing is to perform a high-quality plasterboard putty. This operation can be done by hand, everyone can master this procedure.
Related article:.
Plasterboard is a finishing material in the form of ready-made large sheets of gypsum, covered with a layer of cardboard. Sheets often have dimensions of 1.2 m by 2.5 m, during work, the sheets are combined with each other, cutting them if necessary.

After the room is sheathed with sheets, it is necessary to prepare surfaces for decorative painting or pasting. The most important thing is to carefully putty all the joints between the sheets.

When starting to putty drywall, it is important to remember the four stages of work: primer, starting putty, sanding, finishing putty and fine sanding.

The question arises as to which mixture to use.

There are gypsum mixes that work well in most situations. They will not work only in damp rooms, as they will quickly exfoliate.
In rooms with high humidity, moisture resistant putties are used (for example, in the bathroom, in the kitchen, in the basement).
Polymer putties are usually used to apply the finishing coat. They create a smooth surface that sometimes doesn't even have to be sanded.

For filling drywall seams, you can buy specialized types: Knauf Uniflot, Knauf Fugenfüller, Volma SHOV, Kestonit GP, Forward Gipsmontazh Hydro. There are also versions of the time-tested Sheetrock or Vetonit.

Surface priming

You should start by applying a primer to the sheathed surfaces. The primer will increase the adhesion between the wall, putty and adhesive. In addition, the soil is able to cover the slightest defects in the walls.
For drywall, you can use a special primer Knauf Tiefengrund or Putzgrund, or any other for highly absorbent surfaces.
By applying liquid to the entire surface, especially carefully in the area of \u200b\u200bjoints and corners. Then they wait for the surface to dry up and start work.

Starter putty

At the first stage, the putty is carried out by covering the joints and caps of the screws.

Before starting work, you need to check that all screws are slightly deepened inward. To do this, simply run your hand over the surface, they should not protrude. Tighten them if necessary.

In general, the process of plastering drywall is a fairly simple procedure. The main thing is to pay attention to the joints between the drywall sheets. We select the edge of the wall or ceiling, from which we start and get to work.

Chamfering with a knife

On the seams of drywall, which do not have a standard chamfer, but cut off by hand, be sure to cut the corner with a knife so that the solution penetrates well inside. The new standard edge of Knauf sheets called PLUK allows the mixture to be applied inwardly more densely and to avoid cracking.

New edge Knauf PLUK

1. First, a special self-adhesive mesh is applied to the seams - serpyanka, which will help the putty mixture to stay in the seams and prevent cracks.

Bonding serpyanka

1. In the places where the drywall adheres to the plaster, a special perforated non-woven tape is glued.
2. The mixture itself is diluted according to the instructions on the package. This is easier to do with a special drill bit.

1. The main rule: the putty should completely fill the seam, but the layer should be minimal to hide the mesh.

The corners are putty in turn: first one side, then the other.
The visible caps of the screws are covered with a cross-shaped movement.
We are waiting for the layer to dry and re-putty the seams.

This process is well illustrated in the video:

To cover raised joints or corners, you must use a special perforated corner. It can be metal (for even corners) or plastic with slots on one edge, which can be applied to any curved corners.

When calculating, it is important to take into account the consumption of putty per 1 sq. m. drywall - approximately according to the formula 1: 1, that is, one kilogram of the mixture per square meter.

Let's explain how to putty corners of drywall using a corner.

Measure the desired length, cut off the corner.
A layer of putty is applied to one of the mating surfaces. It serves as a glue for the corner.
Close the cut corner.
Press down on the side of the corner using a long level, rule, or bar.
Adjust the overlay so that the corner is set in a straight line.

Next, we proceed to puttying over the perforated joint.

How to putty at the joint of a corner sealed with a metal or plastic corner? We take the starting mixture and seal the joint with a spatula. When connecting the main part of the wall or ceiling to the edge, a sharp transition must be avoided. A plane should be made of putty, sharp bumps are unacceptable. You will definitely need a two to three repetition of this action, the mixture is gradually applied in thin layers.

Don't try to overlay a large layer at a time. It will surely crack and have to be redone.

When the layer is dry, sand it with a trowel mesh.

Finishing putty

Putty the last layer. To do this, use polymer putty mixtures. They are high-tech, their uniqueness in the ability to create the thinnest coating, up to one millimeter thick. With the help of a finishing putty layer, the surface becomes smooth, ready for decorative finishing.

Plasterboard for painting is carried out more carefully. It is necessary to bring to perfection the entire surface, every corner, any connection must become invisible even to the picky eye. It is best to use Sheetrock putty for this, it allows you to get a perfect surface without flaws.

To apply the putty, use two spatulas, one narrow and one wide. The little ones need to put the mixture on a large spatula or collect the excess from it. Put putty on the paper surface with a large spatula. They do this from wet to dry, that is, apply and spread the mixture, starting the movement on a dry surface. If you start from a damp place, the surface will be uneven, and thin spots will appear.

If you decide to finish your home with roll coatings, we will tell you how to putty drywall under the wallpaper. Different experts hold an ambiguous opinion of what mixture to putty drywall with, it all depends on the quality of the selected wallpaper. For example, if the choice fell on heavy textile wallpaper for the ceiling, then the surface should be rough for better adhesion.

In this case, a coarse-grained mixture is optimal; it is not necessary to use a finishing putty. The entire surface is well covered with an even layer of coarse putty and lightly rubbed with a clear defect.

It is a mistake to think that only the joints of gypsum sheets are putty under thick vinyl wallpaper. It often happens that artificial light gives out the places of the putty, so take the trouble to treat the entire surface with an even layer.

How to putty drywall under thin paper wallpaper? All small irregularities will also be visible here, as with painting, so the requirements do not change. It is necessary to choose a high-quality mixture and carefully remove irregularities with a trowel mesh.

If you use a high-quality mixture and observe accuracy during work, then grinding may not even be necessary, it will be enough to remove small bumps by swiping with a spatula. This technique for applying the finishing layer is described in the video:

As a result, three layers of putty should be obtained under the wallpaper: two for the seams and one for the entire surface. And for painting and thin types of wallpaper, there will be four layers, since you will need to putty the surface twice.

Plasterboard putty under the wallpaper is a crucial moment, it is unlikely that the glued surface will hide all the nuances. Therefore, it is imperative to apply the putty to the entire surface of the drywall, and not just to the seams. The correct implementation of this process determines how the wallpaper will hold, whether cracks will appear on the painted layer.