Is the concrete wall still leveled with cement mortar before scraping the white?

Before scraping the concrete wall, general plastering (cement mortar leveling) is carried out, and then putty is scraped.

Just use putty and you're good to go! ~

As long as it's not too uneven!! No need to use mortar! Just use putty to level and you're good to go! ~

No, you can level it with putty.

Scrape the white. Although it seems to be a very simple item, it must be flattened, and some details should be paid attention to, for example, if it is not scraped, it will affect the effect of painting later.

Large white paste and putty powder.

It cannot be used for leveling, and the maximum thickness of the white paste is 1 good meter, and the maximum thickness of putty generally cannot exceed 2 good meters.

For leveling, the general method is to use plaster to level. Plaster should be mixed with glue. Of course, plaster leveling is also maximized. Once can not exceed 1 cm. For local areas it is possible to be 2 cm thick.

If it is a large area and the thickness is very high, it is recommended to use cement for leveling.

Scraping the white can be said to be the most basic in the repair of a sudden, is an indispensable, no matter what kind of material the wall is used is indispensable, the role is to smooth the wall, the later construction will be more convenient.

Summary. Hello dear. It is possible to scrape, but it is not recommended. The white cement particles are relatively large, so it is recommended to use putty powder to scrape.

Hello dear. It is possible to scrape, but it is not recommended. The white cement particles are relatively large, so it is recommended to use putty powder to scrape.

White Portland cement is the most important variety of white cement, which is a kind of Portland cement made of limestone, clay and silica with low content of iron oxide and other non-ferrous metal oxides as the main raw materials, calcined and quenched into cement clinker by calcining and quenching at high temperature, adding an appropriate amount of gypsum (a small amount of white limestone can also be added instead of comma clear part of the clinker), and grinding in a mill equipped with stone (mold or wear-resistant metal) lining plate and grinding body.

Use: The raw meal of the appropriate composition is burned to partial melting, and the obtained calcium silicate is the main component, and the clinker with less iron oxide content is white Portland cement clinker, and then an appropriate amount of gypsum is added to the clinker, and the white hydraulic cementitious material is finely ground into white Portland cement, referred to as white cement. The color of ordinary cement is mainly caused by iron oxide, the content of Fe2O3 in cement is different, the color will be different, and the production of white cement is to reduce the content of Fe2O3 in clinker. Main Effects:

The uses of orange and white cement also include: putty powder, coatings, caulks, binders, waterproof coatings, terrazzo, artificial stone, floor tiles, permeable bricks, washed stones, sculptures, wear-resistant floors, colored cement, etc.

Whether it is scraping white or pasting wallpaper, it is necessary to scrape putty on the cement wall in the early stage。Of course, the more times the putty is scraped, the more convenient it will be in the later construction, in fact, the main reason for scraping putty is to make the wall more flat, of course, the normal construction process of scraping putty is the most appropriate about three times, when the first putty is scraped, it is found that there is a crack in this situation, the most likely reason is because of moisture.

In other words, the air is not dry enough, and after the first putty, it is not air-dried normally but is dried in the shade, which is the most likely to cause cracks. Generally speaking, if a crack occurs, it is necessary to shovel out all the cracks around and do it again, otherwise cracks will still appear no matter how many times the crack is processed in the later stage. This is very important not to be afraid of trouble and ignore this behavior.

As a landlord, it is best to watch the workers on site during the pre-construction, otherwise the workers will directly cover this behavior with a second coat of putty powder.

If such a problem arises later, we can't find the parties, so although we hand over the decoration work to the decoration company, we have to leave a person on site to supervise their work at all times, after all, it is not their own business, they will focus on their own interests.

Moreover, as construction workers, they have a two-tier relationship with the landlord of the renovation company, and it is not an act between the employer and the employee, so they are most likely to cut corners, cheat, cheat, and slip

And these construction workers do not have a long-term relationship with the renovation company. If I have enough time, I even think it's better to do it myself in the renovation matter, and don't look for a renovation company.

Theoretically, of course, you can, but it is very uneconomical and unreasonable, for example, it is like using fine silk as a rag, which is wasteful, does not absorb water, and is not cost-effective. The ** of white cement is very high, the strength is not better than other cement, and the strength is generally slow. A meal of white cement can be exchanged for several tons of ordinary masonry cement, and you have no reason to use it for masonry.

The main reasons for the problem of wall putty falling off are:

1. Poor skills of construction workers;

2. Poor adhesion or shrinkage performance of putty and coating.

Solution: 1. Choose high-quality water-resistant putty. These putties have high whiteness, good water resistance, high adhesion strength, no peeling, no chalking, and no falling off after use, which can solve the early troubles of Zaoshi when the wall skin falls off;

2. Before spraying cement paint, at least two or three stools need to be scraped all over the putty; Add white latex with gypsum powder to increase viscosity. Another point is that it is recommended that consumers use cement paint for special purposes.

3. The interior wall cement paint has high requirements for scrubbing resistance, and it is easy to stain the wall in home life, so it can be wiped with water at any time. However, the inner cement paint does not have the function of sun protection, so it cannot be used to spray exterior walls.