In the process of repair work, the question always arises of how to putty the corners, because uneven lines or inaccurate bends can ruin the result. The evenness of the corners depends on how the walls were plastered, if mistakes were made in the process, then this will affect the corners.
Puttying during deformation
Working with a surface that is finished with drywall is not difficult, because the irregularities here arise due to a thick layer of plaster. At the corners, the method of removing the top layer of plaster is considered laborious.
In the case of repairs in old rooms, where the mortar layer is deep enough and dense, the work becomes more complicated. The answer to the question of how to putty the corners in this case is complex. First you need to prepare the surface and remove the top of the plaster. After that, spend several times with a primer and then apply a new layer, leveling all the imperfections.
There is another option for how to putty corners. This is where sanding will come into play. The method is not suitableif the wall joints were poorly concreted. The third option for leveling the wall with finishing putty is considered one of the simplest and most effective. The way how to putty the corners, everyone chooses depending on the type of problem.
Working on the outer corners
Although the process itself does not differ from the study of internal corners, there are some differences. Putty should be applied immediately to two surfaces and evenly distributed.
- A sloping element is cut off according to the size of the corner for overlay and alignment. If the angle is even, then the slope must be attached immediately to the finish layer. If there are irregularities, then the starting surface is first made, and after that the finishing ball of putty is applied.
- To determine the evenness of the angle, a metal square is applied, slightly pressed into the putty.
- Be sure to use a building level.
This option is suitable as an answer to the question of how to putty drywall corners, since several types of putty are also used there. The metal corner that is applied to the surface must also be covered with putty so that it is not visible.
Internal joints
Processing the inner corner is much more difficult, because here you need not only to create a straight line, but also pay attention to the evenness of the walls. If there are deformations, then this negatively affects the corners.
The sealing process is similar to working with seams. The technique is suitable for both ordinary surfaces anddrywall. There, at the junction of sheets, cracks and irregularities can also form. It is necessary to cut and process this place well. After that, using a spatula, fill the joint with an adhesive mixture, put a sickle mesh in the corner.
The superimposed grid should completely repeat the bends of the corner, helping to form them. The first layer of putty is used to close the corners, after that, using the level, the evenness of the wall is checked and the main layer of the mixture is applied. Before puttying the internal corners, you need to clean the surface and remove the old layer of plaster. To prevent the corners from spreading (the finishing mixture has a soft consistency), a stable low temperature must be maintained in the room. In the process of applying layers, there is no need to rush so that the surface dries well.
External drywall corners
Outer corners in this case are formed by joining two sheets. If a recess or irregularities form between the surfaces, then through them the putty layers will look sloppy. In the process, the corners need to be aligned, which will significantly increase the amount of work.
Before you putty the inner corners of drywall, you need to use the level to check the evenness of the surface and how the joint turned out to be tight and flawless. To strengthen drywall, plastic or metal corners are used. They strengthen the material and help withstand mechanical stress.
The entire surface of the corners is in holes, through which the remainder of the putty mass comes out. Thanks to this, nothe design becomes heavier, and its technical characteristics become several times better. The mixture is applied from top to bottom simultaneously on two sides. The first layer should not be too thin, but evenly distributed on both sides.
The remains of putty must be removed from the surface so that later they do not fall off along with the top layer. There is nothing complicated about how to properly putty corners. When cleaning with the sharp side of the spatula, be extremely careful not to damage the surface. After the priming process, you can proceed to the implementation of decorative finishes. Between the stages of the work, you need to take breaks so that the mixture hardens well.
Composition and type of mixture
According to the composition of the binder, the mixture can be cement and moisture resistant. This option is ideal for decorating the kitchen and bathroom. During the drying process, small cracks may form on the surface, this is the only drawback of the material.
Gypsum composition in terms of work and finish is more plastic and well covers surface imperfections. They handle residential areas. If you compare materials by cost, the first one will be cheaper, but it is the second option that is responsible for the quality.
By type, you can select a ready-made mixture that is immediately used for finishing, or a powder that must be diluted in the right amount of water to carry out the necessary work. In terms of quality, both options work well and have features that make them durable.
Purpose of the material
One of the conditions for howcorrectly puttying the corners of the walls is the choice of the desired type of coating and additional materials for work. According to the purpose of the mixture are divided into several categories. Specialized are used only on the recommendation of manufacturers, apply to specific places.
Levelers do a good job of smoothing the surface, while they do not create cracks after drying. Their consistency is softer, but plastic enough to penetrate into the recesses and mask them well.
Finishing applied at the final stage of work. One of the conditions for how to putty the corners correctly is the use of the final layer of the mixture. Universal putty compounds can be used as all of the above.
The decorative type of mix hides flaws well and at the same time helps to create an interesting surface through the use of different elements. Thanks to decorative putty, you can create original textures and styles.
Additional tools
To make the workflow as productive and efficient as possible, you need to use special tools. This is:
Angled spatula for leveling inside and outside corners. It differs from the usual form and functionality
- Building level of great length. It will be used in order to be able to follow the evenness of the corners.
- Metal or plastic corners to form the base of the corner. They can be purchased at any buildingstore.
Metal spatulas wide and narrow type. They work well on the surface near the corners and eliminate irregularities
Each stage of the work uses its own tools, thanks to which the process moves forward faster and efficiency increases. If only one spatula is used when working with putty, the process will be inefficient.
Outside corner and trims
It is simply unrealistic to form a base without decorating the joints of the planes. Moreover, to achieve evenness of the angle. For this, special parts made of plastic or metal are used. The second option consists of aluminum and therefore has sufficient lightness and endurance. The surface is covered with perforations, thereby reducing the weight of the product.
The main disadvantage is corrosion in places where moisture enters. If the surface is well protected with a layer of finish, then the process of destruction does not occur. The plastic square behind the shape resembles a metal one, it does not oxidize and does not lose endurance over time. Both one and the second material can be used for work.
To form an outer corner, a small layer of mass is leveled over the surface, after which a square is applied and pressed. Then, using a spatula, the rest of the putty is removed and distributed over the surface. After that, a level is used to determine the evenness of the corner.
Advice from the masters
Before starting work, you need to buy all the materials. If you do this in the process, then the work will be delayed. The process of howputtying the internal corners of the walls is no different from creating external ones, the sequence of work is important here.
Before each new step, you need to wait until the putty dries. You can not immediately impose several layers of the mixture. As for how to properly putty the inner corner using a regular spatula, it is better to buy a special tool with the appropriate nozzle for the job.
You can finish the corners with putty yourself without the help of a master. This requires only desire and a set of necessary tools.
