How to putty drywall? How to putty plasterboard under the wallpaper. Puttying drywall for wallpaper: doing the work with our own hands Proper puttying of plasterboard walls

It is difficult to imagine construction and repair work in which drywall would not be used. It is used to make internal partitions, boxes for plumbing and sewer pipes, multi-level ceilings, arches, decorative elements in the interior. Sheets of drywall align the walls, significant defects in the ceilings.

Straight, broken, rounded drywall constructions before painting or pasting wallpaper should be puttied. How to properly putty drywall without being a finishing master, we will cover in this article.

Tools

For independent work you will need:

foam rollers and brushes for priming,
stainless steel spatulas 10, 20 and 40-50 cm wide,
containers for the mixture and for water,
sanding grater with attachments for mesh or paper,
sandpaper or sanding paint grid,
mixer attachment for drill,
construction knife
rule 1.5-2.0 m long
respirator, goggles, rubber gloves.

Work materials

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

putty

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

Attention ! Following the principle: “like connects like”, it is preferable to apply gypsum putties on drywall.

For interior decoration with high humidity suitable cement, lime compounds or polymer putty.

For the main finish, the craftsmen use Fugenfüller or cement Hercules gypsum putty, 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 applying a layer of putty. For this you should:

Padding

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

Any deep penetration primer can be used, but professionals recommend the Ceresit CT17 primer. It creates a strong 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 sets quickly enough. The solution should be prepared for 0.5-1 hour of work according to the instructions on the package.

When pouring dry powder into water, add it until dry islands appear on the surface. This indicates that the proportions are met. The mixture must be quickly stirred until a homogeneous composition and the absence of lumps and leave for 5 minutes. Putty should be the density of sour cream. After that, mix again and you can get to work.

Attention ! Mixing the gypsum putty solution after preparation is not recommended.

Preparation of corners and joints

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

What kind of putty putty plasterboard seams? To do this, use the composition of Knauf Fugen. The embroidered seams are filled with a mixture, then strips of a special self-adhesive mesh or perforated paper are glued and smoothed with a spatula. Mesh 5-10 cm wide will provide 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 unevenness of the seal with a spatula and prime everything.

Puttying

Puttying plasterboard on the ceiling and walls is done differently depending on the type of final finish. If you plan to stick wallpaper, it will be enough to base and finish a layer of putty. For paint finishes and Venetian plaster fiberglass is needed.

How to putty a ceiling

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

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

This is done as follows:

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

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

How to putty plasterboard under the wallpaper

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

You will need narrow and wide spatulas. 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 working surface;
in the process of work, it is necessary to ensure that lumps of the dried solution and other solid particles do not fall into the solution and onto the spatula. They will leave streaks on the surface that are difficult to deal with;
the remains of the solution should be removed from both sides of the surface of the working spatula. The dried solution is better to throw in the trash.

Operating procedure:

with a narrow spatula, evenly place a small amount of the mixture on the edge of the working surface of the wide spatula,
starting from the corner, apply it on the wall with wavy movements and carefully level it with the spatula in different directions. You can make semicircular movements, wavy, but not straight. It is better to start application from a clean area, moving to the treated part;
collect the remaining solution with a narrow spatula and again evenly distribute over the surface of the wide one, adding a fresh portion;
remove the defects of the dried layer with a sanding grid or sandpaper;
clean the surface of dust with a large brush or cloth;
apply primer;
on the primed surface in the same way, apply a layer of finishing putty, after drying, process with a painting sanding grid with a number of 180-220 in circular motions;
clean the surface of 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. A fiberglass cloth is glued onto a sanded and primed putty layer using PVA glue or for glass wallpaper as follows:

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

A thin layer of finishing putty is applied to the dried glue, carefully leveled and sanded with a paint grid. After grinding and removing dust, the surface is covered with deep penetration primer 1-2 times.

Drywall walls prepared in this way will be even, smooth, ready to be covered with any finishing materials.

Specialists repair work divided on how to putty drywall. Some argue that complete putty drywall sheets meaningless, while others strongly recommend treating the entire surface before finishing. Both opinions have a place to be, 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 done without fail, since any paint will emphasize the smallest roughness of the drywall. In case of thick 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 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 Finishing work, and operating conditions.

Gypsum-based putty. It has a fine-grained structure, therefore it is often used for finishing puttying. The use of this material in wet areas is not recommended, since gypsum absorbs moisture well, which cannot be prevented even with a primer.
cement mixture. In places with a high index of 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 a fine finish living rooms, it is better not to use cement putty - it shrinks slightly, as a result of which microcracks appear.
polymer blend. The polymer-based composition is considered the most plastic, provides a perfectly smooth surface and is better than other mixtures applied to the walls. Polymer putty is already sold in 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 claim that from proper preparation walls for puttying largely depends on the quality finish coat Therefore, before starting work, you need to perform the following actions:

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

Features of putty for wallpapering

To appearance walls and ceilings after finishing completely suited you, it is necessary to putty drywall, paying attention to all the nuances of working with this material. The processing of a plasterboard surface before wallpapering has its own characteristics. 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. Finishing puttying in this case can be omitted, since thick wallpapers will mask all minor defects on their own, but you still can’t do without starting putty. For thin paper wallpapers, finishing puttying is necessary, otherwise all drywall defects will appear immediately after drying.

The choice of 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.

Puttying for painting

Training drywall wall before painting, it is carried out using the same technology as for wallpapering, 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 or 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 seams between sheets, holes and traces of self-tapping screws are carefully leveled with the base mixture, after which the entire surface is primed.

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

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. Moisture-resistant protective shell will effectively prevent paint absorption.

Plastering drywall corners

For maximum results in fine finish, all seams, corners and joints must be carefully puttied. Plasterboard corners are puttied 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 external 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 sickle, 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 with a corner spatula, after which the excess mixture is removed and another layer is applied.

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

Basic puttying technology

The question of how to putty drywall remains one of the most relevant for those who first decided to do repairs. For proper puttying, several spatulas are used - the material is applied with a large one and applied to the walls, small defects are eliminated on a fresh layer with a small rubber tool, hard-to-reach areas are treated with a narrow one, and the putty is leveled at the joints of the walls with an angular one.

The final layer of putty is applied after complete drying of the starting layer, primer and thorough sanding. In this case, the material must be spread in a thin, neat layer up to 2 mm in such a way 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 hardening of the finishing putty there are voluminous shells, 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, so for a better result, experts recommend using a lamp that will help identify all the flaws.

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

Puttying is a mandatory step in preparing walls and ceilings for painting or wallpapering. Surfaces are leveled with a putty mixture, all defects and shortcomings are removed on it. Puttying drywall with your own hands is a simple, but painstaking process. Some features of materials, process technologies and rules will be discussed in the article.

Despite the flat surface of the sheets, after installation there are a large number of joints and fixing points that require sealing. To do this, it is important, first of all, to choose the right material for repair.

Mixtures for plasterboard putty are:

Starting. They have a large grain size, they are used for leveling surfaces (see Aligning walls with putty according to all the rules).
Finishing. They have a fine grain, are used for applying 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	Peculiarities
	Perfect white color. Good plasticity, increasing 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. Gypsum putty is easy to apply and sand. Dries fairly quickly. It is used for alignment, sealing of joints, cracks. Drawback of composition: Cannot be used at high humidity in the room, due to its solubility in water
	Doesn't let moisture through. Not afraid of temperature changes. Perfectly seals chips, cracks, cracks and seams. Well levels surfaces. 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 new material for wall decoration. It differs from the previous ones: Greater versatility. Polymer putty has higher degree elasticity. Durability. Disadvantage: higher price than gypsum and cement coatings

Putty can be ready-to-use or dry mix.

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

There are several reasons for this:

Long stored.
The quality of the material is not affected by temperature fluctuations.
Can be diluted and used in certain volumes.

How to choose and breed putty shows in detail the video in this article.

Surface preparation

This stage includes the following operations:

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

Having finished the walls and ceiling inside the apartment with sheets of drywall, not a single owner will stop arranging the rooms. Bare walls are just asking for decoration. Drywall sheets themselves are smooth and even, but, unfortunately, they are not monolithic, but have certain dimensions. After installation, the wall looks uneven. The resulting joints, the places where the drywall is attached to the frame - the screw heads - need puttying. Front final finishing walls, do-it-yourself plasterboard puttying is done - the work is not difficult, but rather painstaking. First of all, you need to choose a suitable putty.

Choosing a putty for drywall

In shops building materials sufficient selection of dry building mixtures. There are so many of them that you can’t immediately figure out what kind of putty to putty drywall. Some materials are designed for finishing ceilings and walls, others for cracks and chips. Still others are used solely for decorative purposes.

Dry mixes are more profitable to take, because they last for a long time. Both in warehouses and in shops, and after purchase. The quality of dry putties is not affected by temperature storage conditions. While finished putties are subject to all sorts of changes, far from better side. In addition, dry mixes can be used in doses: grease somewhere, level somewhere, and leave most of it for emergency work.

Depending on the materials putty are:

Cement;
Gypsum;
Polymer.

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

Polymer putties are universal and plastic. They are best suited for drywall putty. In addition, their consumption is much less.

Various characteristics of putties, which determine their price and scope, are not decisive for working with drywall at home. Such qualities 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 action, the wall is primed. Under the primer is applied evenly over the entire area of drywall. As a primer, water-soluble mixtures are used that impregnate upper layer dry plaster without penetrating inside. This forms a moisture-resistant film that will prevent the absorption of wallpaper glue or paint.

Important: When priming drywall, alkyd primers are not used because they can cause deformation of the cardboard layer. Peeled paper forms bubbles that crack and hang in tatters. There is no need to talk about any fastening strength of clean finishing materials under such conditions.

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

Preparing drywall for plastering

Before puttying, the plasterboard wall is leveled so that the surface becomes perfectly flat. It makes no sense to putty a wall with protruding heads of self-tapping screws. You need to screw them all up. However, do not apply excessive force so as not to drown the bolt heads. Then you get holes. If, during the installation process, the self-tapping screws are screwed in so that their caps are sunk deep into the drywall layer, the self-tapping screws are unscrewed and new ones are screwed in their place - longer ones.

At the joints of drywall sheets, there should not be any delamination of the outer sheet from the gypsum filling. If the paper has peeled off, you need to carefully tear it off with your hands and cut it with a knife under the very spine. Then clean the resulting wrinkle with sandpaper. Otherwise, the putty may peel off after the fallen off paper. In place of the formed bubbles after the putty dries, cracks will appear.

Plastering drywall for painting

The preparation of drywall is carried out according to a similar scheme, as well as for wallpapering. It is important that the wall is perfectly flat, without dents or protrusions.

cutting corners without edges

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 wallpaper glue. If this impregnation reaches the inner layer, the outer - cardboard - is deformed. Crack or blister.

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

Putty technology

When the primer dries, it's time to move on to putty. A simple putty technology is carried out in several stages.

sticking sickle

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

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 disposable putty, you need to dilute exactly this amount, and not a gram more. For half an hour of work. After that, the putty will no longer be suitable for use.

Sealing drywall joints

To seal the seams between drywall sheets, 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 grater, and the work is not as neat as we would like. What works well for concrete doesn't go without a hitch with drywall.

To properly putty drywall joints, it is necessary to evenly apply a 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 putty to the possible distance. Once you get used to it, you can immediately pick it up with a large spatula and spread it all over the seam. If it turns out to carefully fill the joint, the reinforcement process goes as it should.

An important condition for 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 a rasp will not help. More serious abrasive tools can destroy not only dried putty, but also a drywall sheet.

Screw putty

Puttying screws is done in a crosswise way. Putty is applied along and across, so the grooves of the self-tapping screws are better filled and their heads are completely hidden.

Putty corners

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

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

So, having endured for some time, we get an even, neat seam. A few drops of patience in the process of puttying corners saves a lot of nerves and energy that could be spent on rework.

Basic puttying technique

Actually puttying begins after the roughing of the seams has dried and the corners have been sealed.

often aluminum profiles for drywall corners supplied with reinforcing mesh

Smooth outer corners: window and door slopes- fastened with an aluminum construction corner. It is attached to putty or a construction stapler, which is much more convenient and accurate. No splashes and construction debris under your feet. The corner is cut to the specified dimensions and attached along the perimeter of 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 rigidity and hardness outer corner, which subsequently guarantees its strength to mechanical stress. Then the surface of the solution is leveled with a wide spatula. To do this, it is necessary to carry out a spatula along the edge of the corner and the surface of the drywall sheet.

If you have to putty arched passages, use a special plastic corner. 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 putty as much as possible, then it will turn out uneven surface. It is recommended to apply the first layer, filling all the holes, wait for the drying time, and then apply the putty layer again, leveling the junction of the corner with the drywall surface. The putty layer with this approach turns out to be almost perfectly even.

Finishing drywall putty

The final stage of preparing plasterboard walls allows you to achieve perfect evenness of surfaces for subsequent finishing.

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

For finishing fiberglass or the same putty that was used at the initial stage is suitable. 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 surface of the drywall. It is necessary to apply a layer of finishing putty as thinly and evenly as possible.

Putty consumption per square meter of drywall

The consumption of putty depends on the nature of the treated surface. If there are a lot of defects, then more putty goes away. Considering pre-primer walls, putty consumption for square meter drywall is calculated one to one, plus one hundred grams. It is easy to remember: 1.1 x 1 m 2. This formula is suitable for dry cement-based putties.

When using gypsum putty it is even easier: one to one when puttying 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 all the walls in the room. It's easy: each sheet of drywall 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. It is necessary 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. It's not worth using it. It is undesirable to redo work already done. Either the surface of the wall will not be smooth, as expected, or in the long term, finishing materials will begin to fall off the drywall due to the lack of a strong coupling.

Finishing putty is not the end of the matter. After the wall has dried, it must be primed again.

Only after completing all the stages of preparing drywall for a fine finish, you can be sure that it will be securely fixed. In addition, the finished drywall sheets are easily cleaned from the old wallpaper. Nothing falls off or cracks. After removing the old canvas, it will be possible to stick new wallpaper. There is no need to re-putty drywall walls.

Drywall plastering video tutorial

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

After the room is sheathed with sheets, it is necessary to prepare the surfaces under decorative painting or sticker. 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 is which mixture to use.

There are gypsum mixtures that work well in most cases. They will not fit only wet rooms, because they will quickly peel off.
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 finish layer. They create a smooth surface that sometimes does not even have to be sanded.

For puttying drywall joints, you can buy specialized types: Knauf Uniflot, Knauf Fugenfüller, Volma SHOV, Kestonit GP, Forward Gipsmontazh Hydro. There are also options for the time-tested Sheetrock or Vetonite.

Surface primer

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

Starting putty

At the first stage, puttying is carried out by covering the joints and caps of self-tapping screws.

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

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

Chamfering with a knife

At the seams of drywall, which do not have a standard chamfer, but cut by hand, be sure to cut off the corner with a knife so that the solution penetrates well inside. The new standard edge of Knauf sheets called PLUK allows you to apply the mixture inside more tightly and avoid the appearance of cracks.

New edge Knauf PLUK

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

Gluing sickle

1. In places where drywall adheres to the plaster, a special perforated tape based on non-woven fabric is glued.
2. Dilute the mixture itself according to the instructions on the package. It is easier to do this with a special nozzle on the drill.

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

The corners are puttied alternately: first one side, then the other.
Visible caps of self-tapping screws are covered with a crosswise movement.
We are waiting for the layer to dry, and re-putty the seams.

This process is well shown in the video:

To cover relief joints or corners, you must use a special perforated corner. It comes in metal (for smooth corners) or plastic with slots on one edge, which can be applied to any winding 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 drywall corners using a corner.

Measure the desired length, cut off the corner.
A layer of putty is applied to one of the mating surfaces. It performs the task of glue for the corner.
Attach the cut corner.
Press on the side of the corner using a long level, rule or bar.
Adjust the overlap so that the corner sits in a straight line.

Next, we proceed to puttying over the perforated joint.

How to putty at the junction 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, you need to avoid a sharp transition. You should get a plane of putty, sharp bumps are unacceptable. You will definitely need a two or three repetition of this action, the mixture is applied gradually in thin layers.

Don't try to apply a large layer at one time. It will definitely crack and have to be redone.

When the layer dries, it is polished with a grout mesh.

Finishing putty

putty last layer. For this, polymer putty mixtures are used. They are high-tech, their uniqueness lies 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.

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

For applying putty, two spatulas are used, narrow and wide. Small ones need to put the mixture on a large spatula or collect excess from it. Putty is applied to the paper surface with a large spatula. They do it from wet to dry, that is, they apply and smear the mixture, starting movement on a dry surface. If you start from a damp place, the surface will be uneven, thin spots will appear.

If you decide to furnish your home roll coatings, we will tell you how to putty drywall under the wallpaper. Various specialists have an ambiguous opinion on 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, the surface should be rough for better adhesion.

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

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

How to putty plasterboard under thin paper wallpaper? Here, too, all small irregularities will be visible, as in painting, so the requirements do not change. It is necessary to choose a quality mixture and carefully remove irregularities with a grout mesh.

If you use a high-quality mixture and be careful when working, then grinding may not even be necessary, it will be enough to remove small tubercles by swiping with a spatula. This technique of 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, because it will be necessary to putty the surface twice.

Puttying drywall for wallpaper is a crucial moment, it is unlikely that the glued surface will hide all the nuances. Therefore, it is imperative to apply putty to the entire surface of the drywall, and not just to the seams. From correct execution This process depends on how the wallpaper will hold, whether cracks will appear on the painted layer.