"Ceresite" flooring: characteristics, benefits and installation technology

Recently, in the private and industrial construction it has become popular to use self-leveling mixtures that help to quickly and efficiently level the concrete screed. On the shelves of construction stores, you can see the compositions of different manufacturers, but the most trusted consumer deserves a leveling mixture of Ceresit CN 175. What properties it has, where it can be used and how to smooth the surface with its help, we will discuss in this article.

Product Description

Dry mixture Ceresit CN 175 Is an astringent composition with various mineral additives, designed to equip the rough floor for laying decorative coating. It fills the cracks and grooves well, aligns the base structure and brings it to the same level. Its application is possible with both manual and mechanical application to the surface.

The "Ceresite" flooring is characterized by excellent adhesion with mineral compounds, it falls well on asbestos boards, plasterboard and cement-sand screed.

The products of this brand are used to equip the base for linoleum, laminate, parquet, ceramic tile or carpet. The mixture is also suitable for repairing the old cracked concrete floor and can be used as a screed on warm floors, hydro and thermal insulation.

Basic technical characteristics of the material

The "Ceresite" floor (CN 175) has the following technical characteristics:

• The setting time of the mixture is 30 minutes.
• After 28 days (from the moment the mixture is poured) the strength of the base reaches 4 MPa.
• Operation of the floors is possible not earlier than 6-7 days after the surface hardens.
• The solution must be poured at a temperature of +5 to +30 degrees.
• The maximum permissible temperature during the operation of floors is +70 degrees.
• A bag of dry mixture (weighing 25 kg) consumes 4.5-4.8 liters of water.
• At 1 mm thickness of the leveling layer, 1.6 kg of dry material (per square meter) is taken away.
• The maximum humidity in the room (during the pouring of the mixture) should not be more than 80%.

Merits and demerits of liquid floors "Ceresite"

In the liquid state of the filling floor, "Ceresite" quickly spreads, penetrates into the slightest cracks and recesses, forming an even and solid foundation. The specially selected composition of the components very quickly freezes, so that the repair process does not need to be stopped. Since the thickness of the leveling layer is minimal, its presence does not particularly affect the height of the ceilings in the room.

In addition, the above advantages include:

• Durability;
• Complete absence of shrinkage;
• The possibility of use in systems of warm floors;
• Resistance to cracking;
• Ecological compatibility;
• Ease of application;
• High hardness.

If we talk about the shortcomings of this material, it should be noted that the filler floor "Ceresite" (CN 175) can only be used indoors, since the drying mixture does not like drafts and high humidity. Neglect of these requirements leads to the fact that the surface begins to separate and crack.

Do not forget about the fast grasp. All work on the distribution of the dissolved composition should be carried out within the first 30 minutes, and these requirements give discomfort to some masters.

Also, in the process of work, you must clearly adhere to the technology of pouring the leveling layer, otherwise the level of the sexes can be inferred not perfectly smoothly. So let's look at how to work with this material correctly.

Substrate preparation

Before pouring a mixture of "Ceresite" (bulk floor 175 marking), you need to give proper attention to preparing the base. This process involves the following works:

1. Careful examination of the screed to identify all defects. Particular attention should be given to the magnitude of the differences on its surface, since the difference between the minimum and maximum height should be within 3 mm.
2. Further, with the help of a metal brush or a vacuum cleaner, the floors are cleaned of various contaminants, debris and dust.
3. The clean base is treated with a deep penetration primer and allowed to dry.
4. On the perimeter of the room, a special tape or waterproofing material is glued (to protect the walls from contamination).

To ensure that the mixture does not flow out of the room, the outlet is set to the threshold (which can be constructed from improvised materials and covered with a waterproofing film). Then you can start pouring the mixture.

Pouring the self-leveling mixture

The technology of filling the floor is divided into two main stages:

• Preparation of the solution. In a clean container, pour water and pour in a dry mixture, strictly adhering to the manufacturer's instructions. Stirring can be done manually or with a drill with a mixer nozzle. Stir the solution until the lumps and air bubbles completely disappear in it.
• Filling the mixture . The ready solution begins to be poured from the far corner of the room, gradually moving to the exit. Pour the mixture in small parts, from one wall to the other (the width of the strip is about 40 cm). Using a wide spatula, each strip is evenly distributed on the base, paying special attention to corners and hard-to-reach places.

When the entire surface is flooded with an equalizing solution, it is passed by a needle roller (in special shoes with a needle sole). This is necessary in order to get rid of air bubbles and ensure good adhesion. After that, leave the floors to dry.

At the conclusion of the topic, I would like to voice how much "Ceresite" costs (loading floor). The price for one bag of dry mixture (weighing 25 kg) varies between 350-450 rubles and depends on the volume of purchase.

We hope that our article has provided exhaustive answers to all your questions. Easy repair to you!