It's no secret that any finishingWorks related to plastering and puttying require a properly prepared base. Preparing walls for puttying is a very important stage of construction and repair activities. This is due to the fact that the quality of the base will determine not only its appearance, but also the reliability of the future cladding.
The most important task of putty is to level out all the depressions and unevenness on the surface.
Tools and materials required for preparatory work
Quality and correctness of any work performeddepends not only on the professional qualities of the master, but also on the tools and materials used. When choosing a tool, it is necessary to take into account the layer of putty that will need to be applied to the base. To apply the starting layer, you will need to prepare several aluminum rules. Their size directly depends on the size of the finishing surface. Another important tool is a trowel, which is used when applying the finishing layer of cladding. It is better to buy 2 trowels: the first is one-handed (28 cm), and the second is two-handed (50 cm).
Tools for wall puttying.When applying putty, you will need spatulas. One will be used to apply the solution to the base, and the second - to lay it on the first spatula and remove excess from it. If you plan to do all the work yourself, then in this case it is recommended to buy small spatulas, as they will be much easier to work with. The optimal width of the main spatula is 20 cm. Many craftsmen claim that the smaller the width of this tool, the neater the wall surface will be. You should also decide on the putty mixture itself. There are 2 types of putty: gypsum and cement-based. The first type is white and is used as a finishing layer, and the second is grayish in color and is usually used as a starting layer. If you decide to finish the wall only with starting putty, then when subsequently pasting the base with light wallpaper, gray spots may appear on their surface. To successfully complete the preparatory work, you may also need:
- level;
- sandpaper;
- metal brush;
- brush;
- a deep penetration primer.
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Preparation of concrete base
Scheme for preparing putty.When preparing walls for puttying, you should take into account the material they are made of. Most often, reinforced concrete slabs are used for their construction, and they are not always even and smooth. Usually, after dismantling the old finishing material, small chips, cracks, potholes, etc. are found on the concrete surface. First, you should measure the height difference, and if it is more than 30 mm, then it is recommended to level it with plasterboard sheets. Otherwise, you can use a starting putty. The finishing surface is cleaned of old facing material, debris and dust. If reinforcement is visible in any places, it should be painted. After this, all problem areas are treated with a primer mixture. Then, using a spatula, a starting putty is applied to the wall, which must fill all the cracks and chips. Depending on their size, this procedure must be repeated 2-3 times, because the thickness of one layer should not exceed 5 mm. The next layer is applied after the previous one has completely dried. After leveling the surface, it is treated with primer again, and then the finishing putty is applied. Return to contents</a>
Preparation of wooden walls
Wall puttying scheme.The first step is to remove the old coating, which will prevent the putty from peeling off after a while. Depending on the type of finishing material, dismantling work can be done mechanically, chemically, thermally, or by combining them. For example, to remove paint from wood, first treat the finishing surface with a solvent using a brush or roller. After the paint has swelled (10-20 minutes), you can easily remove it with a spatula and a metal brush. With the thermal method, individual sections of the walls are heated with a building hair dryer, causing the paint to swell and be removed with a spatula. To increase the adhesion of the putty and improve the protective properties of the wooden surface from increased moisture, mold, and mildew, it is pre-treated with a deep penetration primer. When buying a primer mixture, first of all, you should focus on the composition of the putty mixture. For example, if you plan to use a putty based on drying oil, then the best option for a primer would be an oil-adhesive composition. Return to contents</a>
Preparation of plasterboard walls
Before plastering the plasterboard baseFirst of all, remove all protruding elements (screws, nails, etc.). They must be screwed in (driven in) until they stop. If in some places there are deeply recessed screws, they should be unscrewed and replaced with longer ones. All places where adjacent sheets are joined together must also be properly finished. Peeled paper must be torn off or cut off with a knife. Then the defective area is cleaned with sandpaper. After that, the entire finishing surface is treated with a primer, for which it is recommended to use a water-soluble mixture. It is strictly forbidden to use alkyd mixtures, as they can lead to deformation of the drywall. The primer mixture is diluted in some container and applied with a roller over the entire wall from top to bottom. After the preparation of the walls is complete, you can proceed directly to applying the putty. If all finishing work is performed at a high level, you can be completely sure that such a surface will delight you with its beautiful appearance for many years.
