Can plaster walls be coated with waterproof materials for house decoration?

Absolutely. Now home decoration is generally used in household polymer cement-based waterproof coating, one of its significant features is that it is bonded and infiltrated with the cement base surface to form a tight and firm waterproof layer, and the subsequent processes such as paving tiles are directly carried out on the formed waterproof layer.

After using polymer cement-based waterproofing coatings, there is no problem at all with plaster after waterproofing.

However, in order to ensure that the plaster and the waterproof layer are firmly bonded, it is recommended to use tile adhesive to prevent the cement mortar from corroding the plaster and affecting the appearance.

Leibangshi - home waterproofing expert.

You can spray silicone WAGO waterproof coating directly on the rough cement gray wall, and then decorate, which is simple, convenient, and very effective, because this waterproofing agent directly penetrates into the inner layer of the cement substrate, and the product is borrowed from the action of trace amounts of carbon dioxide and moisture in the air to generate methyl orthosilicate crystals, so as to fill the depth of 3 to 5mm inside the substrate to form an impermeable waterproof layer that can maintain normal breathability. So in the house there is no deformation; Sink; In the case of cracking, a permanent waterproof layer is formed, and as long as the construction operation is done properly, the life is comparable to the life of the base surface.

Yes, but make sure that the waterproofing layer is firmly bonded to the base layer.

Yes, rough cement gray walls, it is better to re-plaster: 1Water repellent + cement + water stir thin plastering wall, or 2Cement mortar plastering re-oiled waterproof coating.

Is waterproof gypsum board really waterproof pro! Hello, glad to answer for you. Waterproof gypsum board is really waterproof 1, generally waterproof gypsum board will be used in places with a more humid environment, such as kitchens, bathrooms, etc.

Water is often used in these areas, and some people use waterproof drywall as a decoration to avoid disturbing the ceiling with curves such as water. At present, the most advanced waterproof gypsum board on the market has added specific materials and undergone special processing, so they all have a certain degree of waterproofness. 2. The inner and outer layers of the waterproof gypsum board are waterproofed, so it is no problem to install them in the bathroom, kitchen and other places.

However, although waterproof gypsum board has good waterproofness, it should not be in an excessively humid environment for a long time, let alone soaked in water for a long time. Hope mine can help you! Do you have any other questions?

Drywall collapses after absorbing a lot of water, so it cannot be used on exterior walls.

Types of gypsum board partition walls At present, China's gypsum board includes: paper gypsum board.

There are three types of fiber gypsum board and hollow gypsum board.

The function of the drywall partition wall.

1) Sound insulation. The double-layer detached acoustic wall composed of thin sheets and the double-layer acoustic wall composed of hollow slats are equivalent to the sound insulation effect of a brick wall with a thickness of about 24 cm, so they meet the requirements of the exterior wall in terms of sound insulation.

Fireproof. Gypsum board is a non-combustible material, with certain fire performance, and some can be used as a fire protection layer for steel structures. Therefore, it meets the requirements of the façade in terms of fire protection.

Strength. When the lateral load of the wall is 250 Pa, the maximum lateral deformation of the wall is not greater than 1 240 of the wall height. Therefore, after the reasonable arrangement of the keel, the strength meets the requirements of the exterior wall.

Humidity regulation. When the humidity in the air is greater than its own moisture content.

When large, gypsum board can absorb moisture in the air; On the contrary, gypsum board can release the moisture in the board, which can play a role in regulating the humidity in the indoor air. Therefore, the requirements of the façade cannot be met in terms of humidity regulation.

Drywall collapses after absorbing a lot of water, so it cannot be used on exterior walls.

Hello dear! 49 bits of fans glue and cement. The waterproofness of gypsum is very poor, strictly speaking, it is not waterproof, waterproof is waterproof putty powder, but if you must use gypsum powder, it can only be glue and cement added to the gypsum powder, this practice can achieve the effect of waterproofing.

However, due to the characteristics of gypsum itself, its waterproof effect is not necessarily good, it is still easy to have problems after a long time, if you like gypsum material, but want waterproof effect, it is more convenient to buy waterproof putty powder and gypsum powder directly digging and grinding, and now there are many brands on the market that produce waterproof gypsum powder, ** is also moderate, can be used as a reference, good waterproof gypsum powder or putty powder can form a layer of barrier on the surface of the wall so that water does not penetrate and slide naturally. Due to this waterproof performance, it can solve many problems of mildew and discoloration of the wall caused by indoor or outdoor moisture.

Gypsum powder and nothing can be waterproof, waterproof material and gypsum powder has no connection.

Gypsum powder

It is usually white and colorless, and the colorless transparent crystals are called transparent gypsum, and sometimes they are gray, light yellow, light brown and other colors due to impurities. Streaks white. Transparent. Vitreous luster, cleavage surface pearl luster, fibrous aggregate silk luster.

Gypsum powder classification

1. Gypsum powder can be divided into phosphogypsum powder, desulfurization gypsum powder, citric acid gypsum powder and fluorine gypsum powder according to different physical compositions.

2. Gypsum powder can be divided into red gypsum powder, yellow gypsum powder, green gypsum powder, blue gypsum powder, white gypsum powder, blue gypsum powder, colored gypsum powder, etc.

3. Gypsum powder can be divided into dolomitic gypsum powder, clay gypsum powder, chlorite gypsum powder, alabaster powder, talc gypsum powder, sandy gypsum powder and fiber gypsum powder according to different physical characteristics.

4. Gypsum powder can be divided into holes according to its use: gypsum powder for building materials, gypsum powder for chemical industry, gypsum powder for molds, gypsum powder for food and gypsum powder for casting, etc.

Main application areas

a) Industry. 1. Building materials and construction.

2. Anhydrite cement and cementitious materials: adding an appropriate amount of positive activator can produce anhydrite cement or cementitious materials, which are suitable for the reinforcement of soft soil foundations, wall painting, mechanical models, tunnel support and the production of fiber pressure plates.

3. It is used as a co-solvent and purifying agent in the glass production process.

4. It is used as a filler in industrial production such as plastic balance, rubber, coating, asphalt and linoleum.

5. The main raw materials of concrete expansion agent, anti-cracking agent and self-leveling mortar.

6. Cast-in-place piles and deep stirring piles are used as large expansion materials to increase frictional resistance.

7. It is used as a composite mineralizer in the production of special cement.

8. Chemical industry. 9. Production of sulfuric acid and light cement.

10. Ammonium sulfate is produced, and light calcium carbonate is attached.

b) Agriculture. 1. Improve the soil, adjust the pH, and be suitable for the improvement of saline-alkali land, red soil and other soils.

2. Edible mushrooms are used as calcium and sulfur compound mineral fertilizers in cultivation to adjust the pH of the medium.

The characteristics of the so-called stucco plaster refer to the Chunlingwu plaster painted on our walls, which can play a role and some existing characteristics. As a result, the walls of this type of plaster cannot be painted with waterproofing. It is embodied in the following three points.

The strength of plaster walls is low. The low strength of the plaster wall means that the strength of the wall surface that we use plaster screed to repair is very low.

Moreover, the tightness of this kind of wall surface is very poor, and it is not satisfied with applying waterproof paint on the surface. Therefore, from the base level, it is not satisfied to brush waterproof coatings. ②：

Stucco plaster peels off easily. The so-called gypsum is easy to fall off, which means that after we paint the plaster wall with waterproofing, due to the waterproof force, it leads to the separation of the gypsum from the base wall, and there is a large area of the problem of falling off. ③：

Stucco plaster fails. The so-called failure of stucco plaster is due to the fact that the waterproof paint we use contains a certain amount of moisture or other substances, and these objects will cause the stucco plaster that meets with it to fail quickly. This is also the most essential feature of gypsum or a feature that fails when exposed to water.