Features of the starting putty

A very wide range of filler materials is presented in modern stores. The varieties and features of putties are usually well versed only by those people who often have to independently engage in the implementation of repair and finishing work. However, if desired, even a beginner can navigate this variety. Especially often, when carrying out finishing work, a starting putty is needed. She will be discussed in this article..

Peculiarities

By designation and composition, starting putty materials for walls and other surfaces are a cross between plasters and finishing putties. The structure of the starter compounds is larger than that of other putties, but finer than that of plasters. Today, such products are offered by a variety of manufacturers, but materials from the well-known and trusted consumers of the companies Knauf, Osnovit, and Prospectors have gained particular popularity..

When carrying out finishing, it is worth using all materials from the same manufacturer. In this case, the likelihood that you end up with an aesthetic, strong and durable coating increases..

Purpose

All starter fillers are designed to make certain substrates smoother.. Such coatings are most often applied to:

  • bases with potholes, chipped areas, cracked surfaces;
  • plastered ceilings and walls;
  • brick surfaces;
  • bases that deviate greatly from the level;
  • concrete floors.

In some cases, the base putty is applied to the fiberglass mesh (reinforced layer). This is done in cases where surface defects are very serious. If the base does not deviate too much from the level, it is usually necessary to apply several layers of putty material..

In this case, the consumption turns out to be very significant (when compared with the method when a glass mesh is used). Consumption is usually determined per 1 m2 of base: when choosing the most suitable filler, you should focus on this indicator.

Starting putty materials also make window slopes smoother, fill grooves. When choosing a putty, consider the conditions in which it will be used. Remember that there are different materials for outdoor and indoor use..

Varieties

There are different types of starter fillers. Such materials can be made independently, but at the same time you need to follow the recommendations of specialists and take into account various important nuances. It is quite natural that a self-made composition will be somewhat inferior in quality to products from well-known companies. In addition, the consumption of materials made by yourself is usually very significant.. For this reason, if possible, preference should be given to ready-made putties..

Self-created

If you still do not want to give your money for a starter putty, try creating a suitable mixture with your own hands.. Let’s understand the intricacies of cooking in more detail:

  • Gypsum-chalk putties are well suited for smoothing concrete and drywall surfaces in dry rooms. If you want to get such a putty, put gypsum (1/4) and chalk (3/4) in a dry container. They will need to be mixed gently. After that, place this mixture in a container where there will be a solution of the adhesive (carpentry / animal) – it should be five percent. Mix the material thoroughly to get a homogeneous mass, and apply it immediately, since such a coating hardens in the shortest possible time.
  • Oil The compositions are very well suited for wood substrates that are used in conditions of significant temperature fluctuations (external walls, wood window frames). It is necessary to combine chalk (2 kg) and drying oil (1 kg), then attach a desiccant to them (100 g will be enough) and boil the resulting solution. After that, you will need to cool the material and apply it warm.

Ready

You can not waste time preparing the putty on your own, but buy finished products. Varieties of such coatings:

  • Polymer. The color of such fillers is white. They are very convenient to use, they do not shrink, they are durable and elastic. However, not all consumers are satisfied with the price of polymer materials – many believe that it is too high..
  • Gypsum. They are great for use in rooms that are dry and well heated. Such materials are most often applied to walls and ceiling surfaces. They do not differ in moisture resistance, but at the same time they do not shrink, are elastic and dry quickly.
  • Cement. They can be used in rooms where the humidity is quite high. They are great for façade walls, door openings and window openings. It should be borne in mind that when dry, such putties can shrink. The color of such coatings is gray.

Other ready-made putties can be applied to surfaces made of wood, metal and other materials.. The following options are possible:

  • adhesive putty materials;
  • epoxy compounds;
  • oil coatings.

How to prepare the surface?

When planning to apply filler material, take care of thorough preparation of the base. Remove dirt, dust from it. Clean off coverings that are crumbling and do not adhere well. The tools with which you will do this can be any. The main thing is the maximum convenience of all devices for use..

If you want to putty on the base with a fresh layer of plaster, simply remove the dust from it using a wet sponge. You can walk on the surface with a vacuum cleaner.

If the base is old, you will need to clean off paint or wallpaper from it. Do this with a grinder; if the case is not very difficult, a spatula and a metal brush will do.

To get rid of oil or grease, treat the surface with any organic solvent. You can use regular gasoline or acetone.

A primer will need to be applied to a clean base. By performing this procedure, you will improve the adhesion between the filler and the surface. Choose a primer based on where you are working – indoors or outdoors..

It should be remembered that putty composition must match the primer. If this is not taken into account, it is possible that the components of the materials will not match with each other. As a result, the coating will crack, peel off the surface, and you will have to carry out finishing work again. To find out if certain formulations conflict with each other, see the instructions and information on the packages..

How to prepare the material?

Polymer materials are usually sold ready-to-use. They are supplied to the market in tightly sealed containers. It should be borne in mind that such materials are only conditionally ready for use..

If putty materials are stored in warehouses for a long time, fillers in them inevitably stratify. The heavier components end up at the bottom of the container, while others rise to the top.. To restore the technical qualities of the putty, take a mixer attachment, a drill and mix the material thoroughly.

Always take into account the consumption of the coating, first calculate how much putty is required.

Mixes based on cement, gypsum are usually produced dry. To prepare the filler for work, add water to it. The manufacturer’s recommended proportions are usually indicated on the packaging..

The temperature of the liquid must be at room temperature. First place water in the container, and then add dry putty. Using a nozzle, mix the material thoroughly. Then you will need to wait for some time (from five to fifteen minutes): each component of the solution should eventually be soaked in liquid. After making sure of this, take the mixer again and mix the material thoroughly.

It should be borne in mind that when preparing the putty material, polymer and gypsum mixtures can harden very quickly. For this reason, it is not recommended to prepare too much putty. You will still throw away excess material, because it will not be possible to use a composition that has already frozen.

Application

Spatulas should be used to apply the starting filler. Prepare narrow and wide instruments. If the surface is quite large, you can take a fixture up to 600 mm wide.

Using a narrow tool, scoop the material out of the bucket and spread it over a wide spatula. Then coat the base. Strokes should be smooth, wide.

The layer of the starting filler can be quite thick (from 10 to 15 mm). This advantage of such a material is very important, because it can be used to eliminate rather strong surface defects. If you want the coating to be even thicker, add more layers (usually 2 or 3 is sufficient). Remember that before applying the next layer, you must wait until the previous one is completely dry..

When the putty is spread over the entire surface, wait for a while: it should become firm. Then take sandpaper and sand the surface thoroughly..

        So the base will be as smooth and even as possible, the structure of the coating will become thinner. There will be no minor imperfections on the surface: traces from various devices, sagging and other defects.

        In order for the base to become ideal, you need not only to be able to navigate the varieties of starting putty compositions, but also to use such materials correctly, taking into account even seemingly insignificant nuances. In this case, the results of the work are unlikely to disappoint you..

        Consider the recommendations of specialists, do not ignore the thorough preparation of the foundation. When the surface is as flat as possible, you can start applying the finishing material.

        For information on how to apply a starting putty on concrete, see the next video.

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