My house has just been built or is still a cement wall, how to scrape putty and ask for steps to dec

Precautions for decoration scraping putty, why should it be used after mixing for a few minutes?

It takes a certain amount of time for additives to be completely dissolved in water, and if they cannot be fully dissolved, it will affect the construction quality and product performance, resulting in the waste of additives.

Why should the construction temperature be above 5?

The temperature of the construction environment is low, and the putty additives cannot be fully dissolved, resulting in a decrease in the quality of decoration.

Precautions for scraping putty for decorationWhy should the wall before scraping putty be cleaned?

If there is floating ash on the wall, then there will be no adhesion between the putty layer and the wall, and the putty will inevitably undergo displacement due to the infinite repetition of shrinkage and expansion in the process of curing and temperature and humidity changes, resulting in putty cracking.

Why do you need to paint the wall before scraping putty on a smooth basic wall?

Smooth walls greatly reduce adhesion and are prone to particle displacement during the putty curing process, leading to cracking. The purpose of painting the wall is to make the wall "rough", improve the adhesion of the wall, and prevent putty from cracking.

At present, there is a "wool-making" method in the project: wall hoe + cement + sand.

Decoration scraping putty precautions Why can't putty be scraped too thick at one time, and why should the leveling amount be scraped in batches?

The one-time scraping thickness of putty is directly proportional to the dry shrinkage strength, and the increase of dry shrinkage strength is directly proportional to the cracking tendency of putty. As the thickness of putty increases, the dry shrinkage strength increases, and the cracking tendency increases. If the screed amount is too thick, it should be scraped in layers, so that the thickness of the first batch scraping can be reduced (it is recommended to scrape the thickness at one time, so as to reduce the curing dry shrinkage strength and avoid the cracking of putty.)

Decoration scraping putty precautions The disadvantages of adding white latex to 821 putty during construction.

Enough glue powder has been added to the 821 putty formula, which fully meets the construction requirements, and does not need to add any auxiliary materials, just add water to use. Precautions for decoration scraping putty, such as adding white latex will increase some unnecessary costs on the one hand, and on the other hand, the workability is not good, it will be too viscous, resulting in too thick scraping thickness.

Cementing is not feasible. If you add cement, the solidification of the cement itself will cause problems with the putty, so you can't add cement to the putty.

Scraping putty can add cement, but it is putty powder, not putty paste, because putty paste is a finished product that has been stirred by the manufacturer, and putty powder needs to be stirred with water by yourself, so you can add some cement.

It is not recommended to use putty powder with white cement. Is it used for batch walls? Some people say that it can increase the hardness, I think it is very unnecessary, and the finished product can be put on the wall with clean water.

First of all, I want to tell you that it is possible to add cement to scrape putty; But it must be putty powder and not putty paste. Putty powder needs to be mixed and processed by adding water at the construction site; Putty paste is different, putty paste is stirred by the manufacturer into the finished product, so; There is no way to add cement to putty paste in the later stage.

Indoor shaves appear in almost every house you buy; The indoor scraping is divided into lime and putty, and the two methods can add white cement, adding white cement is to increase the hardness, and the base treatment can only use white cement, but the construction method and process should be very particular; In addition, white cement is sometimes used in wet areas such as bathrooms as beautiful seams, and it is used as an exterior wall leveling base, and white cement can not be used directly, and it must be mixed with putty powder in the ratio of 2 parts putty powder and 1 part white cement, and the so-called putty powder is a powdery material made of grinding after using a certain amount of talcum powder and a certain amount of glue in accordance with a certain proportion. It is also a building decoration material that does not have much strength in itself.

My personal opinion is that putty and cement are feasible in principle, but in practice, we must not operate like this. This is due to the fact that we cannot accurately control the proportion when we add cement to the putty, which leads to many problems after the putty is added to the cement.

No way. The process and structure of putty and cement are too different, and after putty is cemented, it is easy to fall off when scraped on the wall.

No, the putty is white, and it can already be used directly, and the use of cement will affect its effect.

It is best not to add cement to scrape putty, because adding cement will cause uneven walls.

Generally speaking, it is not possible to add cement, because the cement will become very hard after drying.

The requirements for scraping putty vary from wall to wall. Like a general concrete wall, porosity and expansion can occur. To do this, first of all, the wall is leveled, the protrusions are sanded flat, and the pits are filled.

In the case of precast concrete walls, the surface layer may produce rubble and ejecta. At this time, professional construction personnel are needed. You'll need to brush the entire wall with a wire brush.

After priming, because there are sunken places on the wall, you can use gypsum putty to flatten the landfill. Press the gypsum putty into the pit, brush the erected place horizontally, and scrape it again to ensure the smoothness of the wall.

There may be oil stains on the wall, so it is necessary to apply a lye solution, but please be careful when applying. Washing the wall with water while applying will not only speed up a little faster, but will also have an effect.

Before scraping the putty, spray the adhesive for sanding, and you can start scraping the putty. When scraping putty, be careful not to leave floating putty and scratches, and the putty should not be stained with dust, gravel and other garbage, just scrape according to the specifications.

After the first putty is sharpened, carefully check whether there is still a problem with the wall, after the putty is completely dried, carefully sanded with sandpaper, if it is still deflated, then repair and level with putty.

After the water flow is complete, the wall should be flat and smooth, with uniform patterns, and there should be no scratches on the surface of the wall. Otherwise, it will affect the overall decoration effect.

The air drum on the wall has a great effect on the adhesion of the coating, etc., and is usually inspected by visual inspection, percussion, hard engraving, and hand painting. If air bulging is found, it must be completely removed. Use matching putty to repair and flatten, or use cement mortar with the same proportion of wall mortar to repair and fill in accordance with the same construction method as the wall to ensure that the coating absorption is consistent and there are no joints.

The blank wall needs to be scanned; For the painted wall, the old paint needs to be removed, and the putty needs to be removed after more than 5 years; For walls with wallpaper, remove the wallpaper before disposing of it.

After the different wall base layers are basically cleaned, the next step is to choose the interface agent. The interface agent can improve the adhesion to the base layer and avoid the blowing of ash and the generation of shells. When applying the surfacing agent, be sure to apply it evenly.

After applying the interface agent, it is necessary to smooth out the uneven wall. For uneven walls, smooth them with plaster so that the wall error is less than 3 mm.

Walls that need to be waterproofed, such as kitchens, bathrooms and balconies, need to use waterproof coatings. In the past, waterproof materials only needed to be painted simply, but now the new waterproof coatings are mostly 2 or even 3 components.

For wall decoration, it is generally necessary to remove the original putty and paint, and then redo the wall. After removing the existing surface layer putty and coating, carefully check whether the cement (or sand ash) at the bottom layer is strong, whether there is cracking, if the bottom layer is loose, it generally needs to be pasted or continue to shovel treatment, if the bottom layer is cracked, it is also necessary to buckle the V-shaped mouth, fill the leveling plaster, and paste the bandage. Once the top layer has been removed and the base treatment is completed, the putty can be scraped.

In fact, when scraping putty, you still have a certain skill, you have to be smooth and smooth when scraping, and the putty must be just right.

1. Clean the base layer: The concrete or plastered walls, roofs, columns and joints must be carefully cleaned, and there shall be no dust, clay, splashes and oil stains.

2. Scrape the yin and yang angles: When scraping putty, the yin and yang angles are required to be clear and straight.

3. The first pass is mainly used for leveling, and the construction is carried out in turn parallel to the direction of the wall.

4. Ground grinding: try to use finer sandpaper, if it is too thick, it will leave deep sand marks, and the paint will not cover it. After sanding, the wall must be thoroughly cleaned to avoid too much dust and affect the adhesion of the paint. The difference between bumps and bumps does not exceed 3 mm.

Scraping putty refers to the most important step in the treatment of the base layer by filling or overall treatment to remove the uneven part of the surface of the base layer and keep the wall flat and smooth. First roll over the 801 glue . Go to the building materials market to buy waterproof putty (because water-resistant putty has a long service life).

Add water (preferably 801 glue) to adjust the consistency you are used to. You can scrape it against the wall (preferably three times with putty). Allow to dry.

Smooth with sand skin. It's time to brush the paint.

It is theoretically possible to add cement to putty, but it is difficult to control the amount of cement in putty, if you do not grasp the amount of cement, it will lead to the difficulty of construction, and the wall is easy to fall off and crack in the later stage.

Putty can not be scraped with cement, because this will cause cracks on the wall in the later stage, and it is also prone to bubbling and even the danger of falling.

I haven't seen this kind of operation, but theoretically it should be possible, because both materials are sticky, so they can still be used together.

Scraping putty can be cemented, but it must be putty powder instead of putty paste. Putty powder needs to be mixed with water at the construction site, putty paste is different, putty paste is stirred by the manufacturer into the finished product, so putty paste is not able to add cement into the later stage.

It is best not to add cement, because scraping putty is mainly to remedy some uneven walls, and it also needs to be sanded, if cement is added, it will be extremely difficult when sanding, and it is also easy to fall off, so it is better not to add cement.

Freshly plastered cement walls can not be scraped putty. Because the freshly plastered cement wall has not completely dried up, it will cause cracking after applying putty powder.

Putty (mud filling) is a kind of decorative coagulation material that flattens the surface of the wall, is a kind of thick paste coating, and is an indispensable product before paint painting. Apply to the primer or directly to the object to remove uneven defects on the surface of the coated object. It is prepared with a small amount of lacquer base, a large number of fillers and an appropriate amount of coloring pigments, and the pigments used are mainly iron red, carbon black, chrome yellow, etc.

The fillers are mainly calcium bicarbonate, talcum powder, etc. It can be used to fill partially recessed work surfaces, or to scrape off the entire surface, usually after the primer layer has dried, and then apply to the surface of the primer layer. Good adhesion and no cracks are required during the baking process.

Construction according to the process flow:

Base treatment: cast-in-place concrete wall, due to many reasons such as floor slabs, materials, separators, etc., the flatness of the wall is poor, and there are often pores, honeycombs, hemp surfaces, yin and yang angles are not smooth and bulging, so it is required that the convex places are smoothed and straightened, and the recesses should be filled and filled. For the precast concrete floor slab and slab joint base, it must be brushed by a special person with a wire brush to remove the floating sand particles, pimples, dust and other debris on the surface.

For the cement mortar paper reinforcement ash surface layer, the surface base layer is required to be dry, solid and clean (no floating soil oil stain).

Base repair: After the concrete roof and slab joints are cleaned, the gypsum putty is filled and compacted with a steel scraper for larger defects such as honeycomb, and the horizontal wipe is scraped vertically (the top surface with a smooth surface can not be scraped). Gypsum putty with ratio (weight ratio) for gypsum:

Emulsion: cellulose aqueous solution (concentration 5 = 100:5 6:

60。Brush caustic soda solution: Brush twice with 5" degree caustic soda solution, if you use 10" degree to brush once.

It should be rinsed with water immediately with the brush, and then the next process should be carried out after drying.

Coating binder (juice slurry): spray glue before scraping putty, spraying must be uniform and consistent, and there must be no leakage of spraying The glue ratio (weight ratio) is clear water: emulsion = 100:

15～20。Scrape the big white putty: scrape the putty with a steel scraper to scrape back and forth, pay attention to the upper and lower left and right connections, between the two scrapers to be clean, do not allow floating putty, scrape putty to prevent staining or mixing into sand and other debris.

The mix ratio (weight ratio) of large white putty is large white powder: talc: cellulose solution (concentration 5:

Emulsion = 60:4o:75:

Repair and grinding: after the first putty is scraped, the part after the first repair should be reviewed, if there is a problem, the collapsed part of the putty is repaired and leveled, and after the putty is dry, sandpaper, smoothed and cleaned.

Putty survival: scrape the big white putty twice, and then scrape it a second time after the first putty is dry, and it is generally required to survive at least twice. The surface is required not only to be smooth but also to have a uniform texture, otherwise it is easy to have inconsistent color shades and affect the decoration effect.

No. If the wall is not dry, there will be peeling or cracking in the future - be sure to wait until the wall is dry before you can batch putty.

No, I studied architecture, so it's easy to fall off.