The most optimal and inexpensive way of wall decoration is painting. However, it is necessary to apply paint to the prepared surface. And this must be done efficiently, since after staining all flaws and bumps will be visible. The question of how to put the walls to paint under painting will try to make out in this article.

 

Varieties of putty

Putty there are two main types:

  • for internal work,
  • for external work.

It is unacceptable to use putty for external work inside the building, since toxins are released that are dangerous to human health. The putty for internal work is also not suitable for external work, as it is easily destroyed under the influence of moisture and temperature difference.

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According to the components, they distinguish:

1. Cement putty - used in the putty of the facade or in rooms with increased moisture.

2. Gypsum putty - has a beautiful white color, used as the final stage of wall decoration. Not suitable for rooms with high humidity.

3. Polymer putty, which has subspecies:

  • acrylic putty - is universality. Scope of use: internal, exterior decoration, as both starting and finish putty,
  • latex putty - used for interior decoration. It is distinguished by elasticity and ease of work.

According to the stages of work during wall decoration, putty is divided into:

  • the starting putty, which align all the irregularities of the walls. It has a rough basis due to the content of sand,
  • the finish putty, which is used at the final stage of the finish. Has a granular structure that provides a perfectly even surface,
  • universal putty - suitable for both the initial and final stage of work.

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Tools for putting walls for painting:

  • spatula 60*80, 20*25,
  • nylon grid, cell size 0.2 cm,
  • sandpaper or grinding beam,
  • abrasive grid 60.80, 120,
  • bubble level,
  • putty tank
  • metal beacons,
  • construction mixer,
  • glass, brush.

Materials for preparing walls for painting:

  • the putty is the finish,
  • starting putty,
  • primer,
  • water,
  • cement solution.

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Work on wall alignment

The first stage of work is the leveling of walls. To do this, remove all existing coatings from the walls. Using sandpaper or grinding beam, grind the surface. We check the level of evenness. The maximum difference should be 0.5 cm. After that, we primer the wall and expect complete drying.

If with the help of grinding it was not possible to remove the irregularities of the walls, there are two options:

  • wall decoration with drywall,
  • complete plastering walls.

With a difference of more than 5 mm, we install the lighthouses and level the wall using isohypsum or cement mortar. To hide gross surface defects, a layer of about 3-5 cm is sometimes applied. Before that, the starting putty is mixed with well-sifted sand. Ratio 1: 1.

When the work on leveling the walls is done, using a roller or brush, apply a layer of primer on the walls. This will help get rid of fungi and microorganisms, and putty will be more reliable to attach to the wall. The duration of the primer is 4-5 hours.

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How to prepare a putty mixture:

1. Prepare a bucket of water and putty.

2. Check out the instructions, there are indications of water and dry mixture.

3. Dilute a small amount of putty mixture, since the putty freezes very quickly, and it will be more difficult to work. The optimal time for using putty is 30-40 minutes.

4. Be sure to pour the putty into a bucket, and then fill it with water.

5. Stir the mixture with a mixer and leave for 5-10 minutes to swell.

6. Once again, mix 3-4 minutes.

7. We do it three to four times.

8. The mass should be without lumps and have an elastic structure.

The starting putty is always sold in dry form, but the finish is not necessary to dilute with water. Since there are many types of long -playing finish putty, which is already sold in the finished form. Such a putty is more convenient and does not freeze when working.

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Applying the starting putty to the walls

To apply the starting putty, we use two spatulas. We apply putty on the walls with large, and small - distribute the putty along the surface of a large spatula. Distribute putty evenly for more convenient application.

When putting putty from left to right, the upper part of the spatula is to the right than the lower. Keep a spatula at an angle of 45-6 °.

It is better to apply the starting putty in several layers, waiting for the complete drying of the previous layer. The optimal layer of application of the starting putty is 3-4 mm.

To prevent the appearance of cracks in the wall, a nylon network is used, with a cell size of 0.2-0.5 cm. Apply a layer of putty on the wall and attach the mesh to it, then apply the second layer to the grid and distribute the putty along the surface. The thickness of the layers is 1-2 mm.

Experienced carriers replace the mesh with fiberglass or glass wallpaper, which are sold complete with special glue. After finishing with glass wallpaper, painting is possible, but in this case it will take 2-3 times more paint than after finishing the finish putty.

With the help of sandpaper, a large fraction is polished the surface. Small granularity on the surface, after applying the starting putty, is the norm, because such a putty is rude than the finish.

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Finish putty - features of application

The next stage of the finish is the application of finishing on the walls. The layer of applying the finish putty is much thinner than that of the starting one. Before applying, read the instructions, the maximum layer of applying the finish putty should be indicated there.

The finish putty of the walls for painting is applied in several stages, and after the surface is completely dried, the abrasive mesh, granularity of 60 or 80 is grinded. When grinding, do not overdo it so as not to comb the entire putty layer. Using the level, check the evenness of the walls.

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How to check the walls for bumps

After the completion of putty work, it is necessary to make sure that the walls are completely ready for painting. Since when stained all small irregularities and roughness will be visible.

Take a desk lamp or spotlight, tilt to the wall at an oblique angle, if minor defects are visible, they should get rid of them using a grinding machine or manual bar.

The primer is the final stage of the preparation of walls for painting.

In the end of putty work, after the last layer of putty dries, you need to get rid of small particles of putty and dust. To do this, use a dry rag or vacuum cleaner. Before painting, the walls are treated with a primer.

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Preparation technology for the drywall wall for painting

The process of applying putty on a drywall wall is much easier. To do this, you need to perform a number of actions:

1. Apply a primer over the entire surface of the drywall walls. In no case should you use alkyd primers, since the drywall is deformed. The thickness of the primer layer is 0.02 mm.

2. Prepare the wall. Inspect the joints of the drywall and how the screws are fastened.

3. Get a special fiberglass grid at the joints of drywall sheets so that the seam is in the middle of the tape.

4. Sleeps the joints. To do this, prepare two spatulas 12-15 and 30-35 cm.

5. Next, put the screws. This must be done crossly to hide all the grooves and heads of self -tapping screws.

6. Alignment of angles. Turn one side of the corner, and after drying - the other.

7. After drying all joints and corners, attach metal corners to window or doorways.

8. Spit the entire surface. Using a small spatula, press the putty into the profile holes. A wide spatula will help to smooth the putty on the surface.

9. To apply putty on the arch, use a special plastic corner. Fasten the corner with a stapler.

10. Since this corner is thicker than usual aluminum, putty is applied twice.

11. After drying, polish all the irregularities.

12. The next stage is the application of the finish putty. Put the putty with a very thin layer using a wide spatula.

13. After the finish putty dries - primer the wall.

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Tips for putting walls for painting for painting:

  • never apply the finish layer of putty until the starting starting is completely dry,
  • the approximate calculation of putty occurs in this way: for 1 m² about 1200 g of dry putty,
  • when choosing a primer, focus on deeply penetrating species that are resistant to temperature changes,
  • primer consumption of 1 m² about 80-100 g,
  • the maximum layer thickness should not exceed 4 mm,
  • to apply putty on the inner corners, use the rule and a wide spatula,
  • the durability and strength of the walls depends on the quality of putty,
  • when preparing a putty mixture, focus on the consistency of thick sour cream. Since a very liquid mixture will slide from the spatula, and it is hard to work with a too thick mixture,
  • spapberries are excellent quality: ceresit, triora, polimin, saten, knauf,
  • when breeding dry putty, use a respirator,
  • apply putty in various directions: horizontally, vertically and diagonally,
  • never try to dilute the thickened putty with water. Thus, the quality of the putty surface is spoiled,
  • for large surfaces, use a large spatula, and a smaller spatula is suitable for corners or inaccessible places,
  • it is best to choose a spatula made of stainless steel,
  • it is possible to use the expanding pistol for applying a putty mixture. In this case, to smooth the putty, use a rubber spatula,
  • at the end of the work, immediately wash the tool, since then it will be difficult to do it,
  • the first three days after the completion of the work, protect the room from moisture, hypothermia or too high temperatures.

If the process of applying putty seems very difficult, it is better to trust professionals. Indeed, if the walls are improperly prepared for painting, you will have to redo it all over again, and this is a double consumption of materials, money and time. For putty walls for painting, prices are different, it all depends on the area and wall quality. One square meter of putty for painting on a concrete wall costs about $ 8, on drywall - $ 6.

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