Drywall is quite in demand today construction material, because with its help you can create almost any design and shape. It is especially advantageous because it is quite easy and quick to install. Some difficulties can only be caused by sealing the seams between sheets of this material. But still, this procedure is not too complicated, it is quite accessible to do it yourself without the involvement of professionals. The main thing you need to pay attention to is compliance with the work technology, because mistakes made will inevitably lead to the appearance of cracks at the joints.

Necessary conditions for performing work

Before you start sealing the joints between the sheets, you need to comply with a certain temperature regime and humidity conditions. The temperature in the room where repairs are being carried out should not be below 10 degrees. And all wet work must be completed by this time.

An important condition is maintaining a constant temperature in the room after sealing the joints. It is also necessary to avoid possible drafts during work and until the putty has dried.

Advice. Before sealing joints, it is advisable to make sure that all sheets of material are rigidly fastened to the base, otherwise the layer of putty at the seam will quickly collapse. If necessary, it is better to tighten the heads of the screws securing the drywall so that they do not protrude on the surface.

How to seal seams: choosing a tool and putty

To seal seams at the joints of sheets, it is necessary to prepare the following tools and materials:

• spatula - one familiar to the hand with a flexible blade, or two - narrow and wide;
• reinforcing mesh - can be replaced with ordinary paper tape;
• edge plane or drywall knife;
• putty.

Required Tools

It matters right choice putties for sealing joints. Many people use finishing putty in such work, which is not always correct. Here everything depends on the further finishing of the walls and ceiling, what exactly this surface is being prepared for - for painting or. A putty specifically designed for sealing seams is best, especially if you plan to paint the walls or ceiling. If the surface will be covered with wallpaper in the future, you can use either the finishing or starting wallpaper.

Attention! You should not save on reinforcing the seams between plasterboard slabs. Joints sealed without the use of special reinforcing mesh or tape may subsequently crack.

How to seal joints in drywall with your own hands

First, you need to clean the joints from dust with a slightly damp cloth or using a vacuum cleaner. The plasterboard slabs themselves may have a special thinning along the edge, which is filled with putty and facilitates the process of leveling the surface. If there is no thinning on the edge, the edges of the sheets of material must be cut with a plane or knife at an angle of 45 degrees. Then this place can be primed so that the putty adheres better to the surface of the material and allowed to dry.

First, treat the edge of the drywall

The seam sealing process itself must be performed in the following sequence:

Advice. If the first time it was not possible to lay the reinforcing tape evenly, it is better not to correct it, but to completely remove it and do everything again.

Sealing the seams of drywall sheets at the corners

Corner gaps at the junction of plates are sealed slightly differently than ordinary seams between sheets of material. When filling them with putty mixture you must:

• first apply a little putty to both surfaces, leveling alternately on both sides;
• fold the reinforcement tape in half, lay it along the corner seam, fixing it with pressure and removing excess putty mixture;

Working with a fillet weld

• after the putty mixture has dried, sand the treated surface to remove any unevenness with coarse sandpaper;
• Apply a thin final layer of putty on top with a slightly wider coverage of the surface and carefully level it to a uniform structure.

If the length of the seams for sealing exceeds 3 m, it is better to divide them into sections for work, performing each separately. By doing this, you can get neater joints. And to quickly understand how to properly seal seams in drywall, you can watch a video on this topic that will help you visualize all the stages of this work.

Installation of reinforcing tape

As you can see, the process of sealing drywall seams does not present any particular difficulties. You can easily handle this work yourself. But if you have doubts about your abilities, then it is better, of course, to turn to the help of professionals or at least get advice from those who have already done such work with their own hands.

Sealing drywall seams: video

Sealing drywall seams with your own hands: photo

Drywall as a building material is very good. It is installed quickly, with virtually no “wet” processes. You can create any designs and shapes. But there is one problem that is sometimes not so easy to solve. This is sealing drywall seams. If it is not done according to the rules, after some time cracks will appear at the seams between the sheets of drywall.

On a plasterboard ceiling, the seams between the sheets should not be noticeable

How to seal drywall seams: choosing tools and putty

The work of sealing seams is a painstaking task that does not tolerate fuss and negligence.

A spatula is the main tool that is useful for work. Everyone chooses the spatula that is most convenient for working. Some people work with a narrow spatula, while others prefer a wide one. It is not important. The main thing is the flexibility of the blade. Test it by holding the handle and blade - it should bend easily.

In addition to the tool, it is important to choose a putty for drywall. Many people simply treat the joints with finishing putty. This is wrong, especially if the surface is being prepared for painting. So, the choice of putty depends on the further finishing of the walls or plasterboard ceiling.

If the surface is being prepared for painting, the seams must be filled with a special putty for seams. Uniflot putty from Knauf is excellent for these purposes. This is a rather expensive putty, but if you are preparing a surface for painting, it makes sense to purchase it. In this case, the seams most likely will not crack, and this is very important for a surface to be painted. Professional drywall craftsmen, when preparing the surface for painting, use material only from this company.

If you are preparing the surface for subsequent wallpapering, it is not necessary to use such putty; a regular finishing or cheaper starting putty will be enough. You will also need tapes, reinforcing mesh or sickles, which will be used to glue the longitudinal and transverse seams.

Some craftsmen successfully use ordinary paper tape to seal drywall seams.

To stir the putty, you will need an electric drill with a special attachment, as well as a container for preparing the putty.

Sealing drywall seams: description of the process

Gluing tape or bandaging is one of the stages of sealing seams between sheets of drywall

Having prepared the putty mixture, put it on the end of a spatula and apply it with longitudinal movements onto the surface of the seam so that the width of the strip exceeds the gap between the sheets of drywall. Try to press the putty mixture into the seam. If the seam length exceeds 3 m, divide the surface into sections to work on.

Cut a piece of paper tape or mesh along the entire length of the seam and glue it to the joint of the drywall sheets. Try to glue so that the joint runs in the middle of the tape.

It is, of course, more difficult to seal joints on the ceiling. First of all, it's inconvenient. Secondly, the putty mixture does not adhere sufficiently to the drywall and falls down. It is necessary to press the spatula to the surface of the ceiling at the beginning of the seam and move it along, increasing the pressure. This will prevent the putty from falling and the surface of the joint will become smooth.

How to choose a good reinforcing mesh? Take it in your hands, crumple it, pull it up a little, evaluate the stretch and shift of the cells, and then straighten the mesh again. If it is elastic and not frayed, then it is suitable for work.

How to trim corners correctly

If all the rules are followed, the seams between the sheets of drywall will be completely invisible

First, spread the putty along one side of the spatula, and then transfer it to one side of the corner and inside the seam. Repeat the same on the other side of the corner. If you work in this sequence, you can avoid overusing putty.

After cutting a piece of tape to length, fold it in half and apply it to the corner. Apply putty to each side of the tape one by one and pull it through with a spatula.

The internal corners along the ceiling are sealed in the same way. To seal outside corners, apply metal corner. It can be secured with screws. Apply a layer of putty with a wide putty knife, working first on one side of the corner and then on the other.

Sandpaper is used to sand the sealed areas. Remember that sanding produces quite a bit of dust, so wear a respirator. Drywall should be primed after sanding. Only after this the surface is considered ready for painting or decorative plaster.

Tape for sealing seams greatly simplifies the work and allows you to get a better result.

Even if all the rules are followed, cracks often appear on the surface of the drywall after sealing the seams. This is not surprising: when the temperature changes, any material changes size. Temperature changes can be several degrees. Micro-shears of sheets lead to cracks at the seams. To minimize the likelihood of occurrence, try to fill the seams well with putty.

It is advisable to seal drywall seams with putty after constant humidity and temperature have been established in the room. In this case there will be no cracks. But constant temperature and humidity indicators are observed only in rooms that are equipped with serious ventilation and air conditioning systems, so implementing such recommendations in practice is very problematic.

You may be misled by a similar inscription on the packaging of the putty: for sealing seams on drywall without reinforcing tape. Don't think that this means that you will putty on the walls and there won't be any cracks. Most likely, this putty is simply not intended for reinforcing tape, since it will not be able to hold it.

Technology for sealing drywall seams: video instructions

There is no doubt that plasterboard is a very popular material used for interior decoration. But he isn't end result such work, there will also be a decorative layer. This means that the surface must be carefully prepared. Special attention Requires sealing of plasterboard seams. This stage is given great importance; initially everything needs to be done correctly.

When starting any work, it is better to prepare everything in advance. You need to pay attention to the tools minimum set of which is:

1. A set of spatulas - it is better to choose three main ones: wide, medium and narrow. The first one will do the least amount of work, but it is very convenient for smoothing out seams.
2. If you wish, you can add a falcon - a special device for working with putty. It is a flat plate with a handle. It is convenient to take the solution from its surface. Although, a wide spatula will perfectly fill its role.
3. Level.
4. Drill with mixer attachment.
5. Brush and .
6. Block and sandpaper.
7. Construction knife.

Tools for sealing drywall joints

We must not forget about the materials, of which there must be the required quantity:

• Two types of putty compounds:
  Starting. They will be used to seal the drywall seams.
  Finishing. This mixture will not be used to seal drywall joints. It is needed to apply a control layer that will make the surface perfectly smooth.
• Primer mixture. It is better to prefer acrylic.
• Special tape - mesh (serpyanka). It will be used to seal the joints of the gypsum boards. And it is needed so that the putty does not cause cracks in the future.
• We must not forget that there are also corner seams. Therefore, it is better to have special perforated elements. And also reinforcing tape for corners.

Only by putting everything together can we say that the time has come to do the work yourself. The sealing of drywall joints should not be interrupted due to the absence of something.

Advice! When choosing a putty, they focus on the final decorative coating. So, you can choose a cheaper dry mixture for wallpaper. In any case, it is better to give preference to gypsum-based putty. This is a reliable composition that is well suited for such work.

Working with seams

Sealing drywall seams has its own characteristics. To do everything correctly with your own hands, observe the following conditions:

1. Complied with optimal performance for work, which are indicated by the manufacturer on the putty packaging.
2. Drafts should not be allowed to occur.
3. Plasterboard slabs must be checked for reliability of fastening to the wall (profile). Any “walking” of the sheet will lead to the destruction of the layer of putty mixture, even when applying tape (mesh).

Now the puttying of drywall joints begins, divided into several stages.

Joining

This process is the processing of the edges of the material. The goal of the event is to obtain a surface that will be as suitable for work as possible. A construction knife is used.

1. Where two sheets of drywall meet, remove all excess (cardboard scraps, broken areas).
2. They begin to cut the chamfer. Do this at an angle of 40-45 degrees. That is, the joints of the plates should resemble one well-known symbol - a “tick”. It is more convenient to do this before fastening. Although, there is nothing to be done after.

On a note! There is gypsum board on sale, the edges of which are already processed at the required angle.

Primer

It is believed that priming is optional, but this is not entirely true. Yes, gypsum board has sufficient adhesive properties that will hold the putty layer and the subsequent decorative layer. But why take the risk? The cost of such compositions is low, they are applied quickly.

It would be correct to choose a mixture based on acrylic. It has good penetrating properties and dries quickly.

If you plan to paint the surface, then priming is a must.

Caulking seams

Sealing drywall joints begins with preparing a dry mixture. It is diluted with water and stirred well. After letting it stand for a while, the procedure is repeated. They don't cook a large number of- exclusively for an hour of work.

Attention! Serpyanka tape can be used in the work, and there is also paper reinforcing tape for drywall. They are similar in their parameters, but the latter is used when increased requirements to the resulting seam. For convenience, choose self-adhesive products.

The process technology is as follows:

• To make it easier to work with joints, you can take a small container and put a little putty into it. So, it will work faster and more conveniently.
• So, take the mixture with a medium spatula; you need to literally hold it on the tip. And smoothly smear it into the seam.
• It is necessary to ensure that the solution completely occupies the volume of the joint.
• Now cut the tape, which is glued directly to the seam. It should go down the middle.
• The serpyanka is pressed a little. Next, apply another layer along the entire joint. Thus, the tape is immersed in the solution and becomes flush with the surface.
• Everything is thoroughly smeared. Check the level.
• When the layer dries, use sandpaper.

On a note! Working with reinforcing paper product somewhat different. It's cut right away the right size and pour boiling water over it. Then apply a layer of mortar to the seam. After waiting for it to dry, it is sanded. Then wring out the tape and apply PVA glue to the seam. When gluing the tape to the joint, it is immediately lubricated with the same glue. The surface is smoothed with a spatula. The seam is very thin and strong. The whole process can be easily done with your own hands.

There is another way, it is similar to the one already given. But to seal the joints, you will need a little skill in handling the tool. It goes like this:

• The solution is quickly spread with a medium spatula. At the same time, without smoothing or removing excess.
• Then they take a wide tool, place it at an acute angle, and move it across the surface from bottom to top.
• It would be correct to press down on him.
• It turns out that the putty fills the empty areas and forms a smooth surface onto which the reinforcing product is already glued.

Corners are sealed in a similar way.

The result will be a surface that will remain covered with a finishing layer of putty. If everything is done correctly, there will be no cracks. In any case, the main thing is to do everything carefully and painstakingly, especially if such work has not been done with your own hands before.

Sealing drywall seams is a necessary operation when finishing with plasterboard. These days, most apartment owners in multi-storey buildings do not leave balconies and loggias open, as they did before. They glass them, fortunately modern technologies allow you to do this quickly, efficiently and inexpensively, and perform exterior and interior decoration.

As a result, the loggia or balcony turns into another closed room, which everyone uses at their own discretion. Someone is making another room there. Someone's workshop. And someone winter Garden. But in any case, the walls of the glazed balcony require finishing.

For interior decoration use different material. Both plastic and wood. I have seen how some owners use ceramic tiles when finishing balconies. One of the most popular finishing materials is drywall. Which has many advantages over other finishing materials.

Firstly, it doesn’t matter at all what condition the wall is in or how smooth its surface is. The technology for installing drywall is such that it is very easy to level out all the unevenness of the wall.

Secondly, it is enough to mount just one sheet to cover a large area of ​​the wall.

Thirdly, between the wall and the drywall there is a small space where any insulation can be laid.

Well, fourthly, you can apply any decorative finishing. Just paint it. Or wallpaper. Apply decorative plaster.

Information: the only thing that drywall does not like is dampness and humidity.

When installing plasterboard sheets, as a rule, no difficulties arise. A frame made of metal or wood is attached to the wall. Insulation is laid between the slats and sheets of drywall are attached to the frame using self-tapping screws.

And here one interesting point arises that I would like to dwell on separately. After the sheets of drywall are installed, there is a seam between them. And if any kind of complex design, then there will be many such seams.

Before you begin to putty the plasterboard, it is necessary that the drywall seams be sealed. If you putty the seams just like that, together with the plane of the sheet, then in the future the putty will simply come off at the seams, and the surface will not look uniform.

Tool

I love it construction work impossible to perform without a special tool. And sealing seams in gypsum boards is no exception. You will need:

• putty bucket
• drill
• mixer
• set of spatulas;
• grater
• set of mesh for grater
• roller
• cuvette

Materials you will need:

• deep penetration primer
• putty
• paper tape for seams
• mesh for reinforcement

Preliminary preparation of seams

Sealing technology seams between sheets of drywall are not difficult. But there are certain subtleties here too.

If you look at the ends of the drywall sheets, you will definitely notice that they are different. The factory seam usually has a round shape. Sometimes the shape can be flat, but in any case, the seams of the drywall are pressed into the depth of the sheet. And ordinary sections, not processed at the factory, are not covered with cardboard and are not pressed in.

So, we don’t touch those factory seams that are covered with cardboard. And we process the sections on which the gypsum located inside the sheet is visible. This needs to be done this way: take a sharp stationery knife and at an angle 45 degrees The upper edges of the gypsum board are cut off. It turns out the joint between the factory seam and the seam with the groove that you cut out.

Let's start sealing the seams. Putty

The first step is to prime the plasterboard very carefully using a roller. Both the seams and the entire surface of the sheets. While the primer dries, you need to prepare the putty. Today, a great variety of putties are produced. But the most common and popular are:

• Knauf Fugenfuller
• KREISEL
• Vetonit Gyproc Siliote
• SEMIN CE 86

In principle, there is practically no difference between them. But as experience with plasterboard shows, it has proven itself best putty for sealing seams SEMIN CE 86. In principle, you can use any - they are all good.

The putty should be poured into a bucket and, using a mixer, brought to the desired condition, adding water. It should look like thick sour cream. The drill speed must be minimal, otherwise the reinforcing additives will be destroyed. This will significantly reduce the strength of the putty. It should be remembered that you cannot mix old and new putties. The old one should be worked out, and only then the new putty should be mixed.

Well, after the putty is prepared, it begins DIY seam sealing. To do this, apply the solution across the seam. Don’t just apply it, but kind of rub it deep into the seam. The mixture should fill it to its entire thickness. There should be an excess thickness of the mixture on the surface so that it does not dry out quickly and can be worked with. In this way, fill the seam along its entire length. If the seam length is long, then sealing drywall seams is divided into several stages.

Reinforcement

If you simply apply putty into the seam, it will not stick there. As the putty dries, it will decrease in volume and simply fall out of the seam. To prevent this from happening, the seam should be reinforced. For this purpose, a special paper tape for seams or reinforcing fiberglass mesh.

When purchasing reinforcing mesh, it should be checked for quality. This is done like this: you should pull the mesh to stretch it, see how the cells move, break the mesh, and iron it on top with your hand. If the mesh has not burst or become frayed, then it is a high-quality mesh. To make it convenient to work with the mesh, it is already wound at the factory into rolls of different thicknesses and lengths.

So, apply mesh or paper on top of the generously applied putty in the seam. Then, with a strong movement of the spatula, we rub it into the solution that was applied earlier. Thus, the mesh ends up in the middle of the solution layer, and reinforces it, preventing it from shrinking when drying. After the mesh is recessed into the seam, excess putty is removed with a wide spatula.

If a thickening appears at the seam site, then you should use a spatula to “pull out” the seam to a distance 30 cm in different directions. All. The putty should now be completely dry. After the putty on the seams has completely dried, the surface of the plasterboard sheets is puttied.

Sanding putty

Sanding the areas sealed with putty is the final stage of finishing the balcony with plasterboard. You can use regular sandpaper for sanding, but it will be much more convenient to use a special grater in which special meshes with different sizes cells. The work is done efficiently and quickly. We remind you that grouting drywall joints performed only after the solution has completely dried. Grouting is done in a circular motion.

Please note that sanding produces a very large amount of dust. Therefore, you should take care of the funds personal protection: respirator or cotton-gauze bandage.

After sanding is completed, the surface is again coated with a primer. All. Now you can apply any decorative coating.

Sealing drywall seams photo

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Sealing drywall seams video

We also invite you to watch the video on the topic of our article. This video provides instructions on how to seal drywall seams.

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Discuss the article

To the post “Sealing drywall seams: step-by-step instructions” 8 comments

Of course, everything that is written here is ideal. But we should not forget about the shrinkage of the house and its ability, so to speak, to “walk” depending on the time of year. No matter how well the joint seam in the drywall sheets is sealed (even using “serpyanka”), it will still make itself felt over time. Therefore, it is better to calculate the plasterboard seams and place them in secluded places on the walls, so that when they appear, they do not attract much attention to themselves.

Interesting, I always thought that sealing drywall seams was a responsibility experienced craftsman, and not the ordinary man in the street. The instructions are quite simple and you can do everything yourself (of course, if you have the right hands). As for grouting, I didn’t know that it was done exclusively in circular movements, usually it turned out horizontally, it’s worth a try. Thanks for the really practical tips.

Thank you for the article. The other day I finished finishing the walls with plasterboard in the house for insulation. And so I thought for 3 days what to do with the stitches. Leave it like this or close it up? Now I am sure that it needs to be repaired. Sealing the seams is of course a long and tedious job. but it will be much more reliable. And the heat will be retained better in winter. So it's worth working on it. I hope everything works out.

The main point is which putty is best to use, the whole result of the work depends on this. Since it would be unpleasant to find cracks on the ceiling after a while. I’ll try to find a putty exactly as recommended here SEMIN CE 86. And for reinforcement it’s probably better to use paper tape for seams. In general, everything is not difficult if you follow the recommendations from the article.

Drywall seams at the final stage of installation require finishing so that the surface becomes smooth and neat. But what other tricks and secrets does this technology hide? In the article we will tell you why, how to properly, and what means are best to seal the seams, and whether it is possible to do without this procedure.

Joints formed during installation of gypsum boards

No matter how correctly the frame for drywall is made, a seam remains between two adjacent sheets. The size of the joints depends on the characteristics of the material itself, which has different kinds edges During installation, these edges create visible indentations on the surface, which can only be removed during the finishing process.

Uneven seams are formed if the frame is not rigid enough or few profiles are taken for its construction - under the weight of the gypsum board these metal constructions are deformed, causing the edges of the slabs to stick out unevenly. Another factor in the formation of seams is the loss of linear dimensions of gypsum board sheets as a result of temperature changes. Microshifts of the sheets in this case lead to the formation of cracks.

If you do not seal such seams, then:

• it will not be possible to achieve a flat surface;
• the material will deteriorate, because the edges will be exposed to direct influence of environmental factors (get wet, dry out, etc.);
• When painting or wallpapering, stains will appear on the surface and the finish will move away from the surface.

What products will help hide joining seams?

To finish the seams you will need the following materials:

• Perforated paper or reinforcing serpyanka tape for reliable fastening of drywall seams. It is able to withstand high tensile loads, protects sheet joints from the appearance of cracks during microshears, and is used to ensure adhesion between the putty layer and gypsum board.

Serpyanka ribbon

• Putty is one of the most important components in this chain with which seams are sealed. The highest quality compositions - Uniflot or Fugen (Knauf brands) - are easy to apply, do not shrink and do not crack over time, provide low consumption, high strength, and a smooth hard surface.
• The primer is used to protect the material from mold and mildew, to increase resistance to moisture, to ensure adhesion of the finishing layer to plasterboard sheets and to reduce material costs. Apply the primer in two layers, it is preferable to use an acrylic mixture of the Knauf, Belinka, LNPP brands.
• The plaster serves as a finishing coating, creates a smooth surface, protects the gypsum board and increases its adhesion to the subsequent applied layer.

Most Popular plaster mixture– Rotband (Knauf, Germany). Its advantages - wide range treated surfaces and fast drying time (from 25 to 45 minutes). Plaster is made on the basis of gypsum, so it allows the walls to breathe. Moisture resistant. Used as finishing decorative covering or serves as a layer between gypsum board and wallpaper, paint or tiles.

The main feature when working with Rotband is that the composition must be applied quickly or diluted in small portions, since the mixture sets quickly.

Finishing materials produced by Knauf

How seam finishing technology works: practical tips

Finishing stages:

• the surface of the plasterboard is cleaned of dust and dirt (with a vacuum cleaner or a dry cloth);
• run your hand along the surface of the sheet - if the heads of the screws are touched, they need to be tightened;
• a chamfer is cut from gypsum board sheets at an angle of 45 degrees, with a width and depth of no more than 5 mm, so that the plasterboard sheets do not cling to the edges in the event of micro-shear and chips do not appear;
• then the surface of the gypsum board is coated with the first layer of primer;
• dilute the putty, apply perpendicular movements to the seam at the joints, pressing inward;
• let the putty set (but not dry), apply reinforcing or paper tape to the seam, press it - it should immediately stick to the solution;
• another layer of putty is applied over the tape, carefully leveling, but so that the tape is not visible, the mixture is pulled out and leveled until the surface becomes even;
• The joint between the wall and the gypsum board is sealed in the same way, only the tape is folded in the corner so that it folds in half;
• screw caps are puttied;
• After the putty has completely dried, carefully sand the seams;
• after sanding, apply a second layer of primer;
• when there's nothing left on the wall dark spots from the primer mixture, the surface of the sheet is covered with Rotband, carefully leveling.

Room ready for final plastering

After this stage finishing GKL sheets are considered completed. It is not necessary to additionally treat the layer of plaster; you can use it as a front covering or decorate it with tiles, wallpaper, or tinting. You will see how all the stages of finishing take place, from puttying the seams to applying the decorative layer, in the video below.

Finally

In the end, we’ll tell you about the little helpers in this matter: a spatula, a brush or a roller. You will need two types of spatula: one narrow (100 mm) - designed specifically for sealing seams, the second wide (250 mm) - for rubbing putty and plaster over the surface of the sheet.

The blade should be flexible to make the solutions easier to apply.

For priming you will need a brush or roller, however, in order to save material and even distribution, the latter is preferable. The use of these tools, materials and technology will help keep the surface smooth for a long time, free from small cracks and other flaws.

— necessary event if you want to end up flat wall or ceiling.

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