It refers to the use of double fly powder, gypsum powder and white cement on the original wall and top surface of the rough house.

Leveling is done to facilitate later scraping and wall painting.

Putty

The wall putty consists mainly of putty and water-resistant putty.

Ordinary putty: In the past, the old-fashioned wall was a plastered wall. It had a certain thickness. Even if the wall was uneven, I could find it. I felt that the old Falun Gong wall was not gray at all. The wall was also flat and there were no cracks. My house was in the sixties. The old house is like this, and the later putty is only a thin layer of scraping on the concrete wall. If the uneven light is due to putty, it is uneven.

The earliest putty is 107,801 glue plus fly powder or talcum powder and cooked rubber powder self-deployed, belonging to non-finished putty, although the price is low, but the procurement of a variety of raw materials is inconvenient, all workers feel right, the ratio is not standard, the quality Unstable. The old-fashioned putty has no resistance to water, easy to peel, de-powdering, and has a short life span. In particular, the adhesive 108 used in the raw material is not environmentally friendly and will cause harm to the human body.

Water-resistant putty: water-resistant putty is commonly known as waterproof putty. Beijing Lions Coatings Co., Ltd. first won this patent, and it has been mass produced in 1995. The water-resistant putty is composed of calcium carbonate, gray calcium powder, cement, organic rubber powder, water retaining agent, etc. It is made of natural vegetable adhesive as adhesive, strong adhesion, high bonding strength, good crack resistance, and no smell after construction. , It is green, non-toxic and tasteless and does not contain the advantages of formaldehyde, benzene, xylene and other harmful substances. The water-resistant putty wall surface has strong water resistance, and it will not appear powdery, cracking, peeling, falling off, etc. after moisture exposure. The construction is convenient and the water can be used immediately, which can improve the performance and service life of the paint and save the amount of latex paint. The wall surface is delicate in touch, uniform in color, and can be directly scrubbed or brushed with interior wall paint after wall pollution. It is the best combination of wall and paint.

The water-resisting putty is insoluble in water. In the national standard test environment, the water-resistant putty is scraped onto the cement board and soaked in water for 48 hours. It does not cause peeling, cracking, powder falling, and drawing strength ( The degree of vertical pull-tabbing is still above 0.3Mpa. The high-quality water-resistant putty does not cause problems in the water for seven days and seven nights. The walls will not be powdered after construction for twenty years. High-quality water-resistant putty has high bonding strength, certain toughness, good air permeability, absorption of moisture from year to year, wall waterproof putty layer will be maintained stronger, wall scraping water putty once and for all, housing second No paint removal is required to remove the wall surface. Only a simple repair procedure is required to apply the paint directly.

Three generations of wall putty - anion water-resistant putty powder, in which the unique piezoelectricity and thermoelectricity of Biyu jade lining can ionize the surrounding air, stimulate the formation of a large number of negative ions, make the wall continue to create negative ions, improve the negative ion concentration of the room, reduce the air The quantity of toxic and harmful substances has improved the air quality in the living room. It can purify and reduce the amount of toxic and harmful substances such as dust, bacteria, and formaldehyde in the air. It is super-resistant to water, fine and delicate, resistant to self-cracking, not easily pulverized, completely dry and neutral in pH, excellent in workability, and effective at the same time. Prevent mildew on the wall. But at present, Keruid putty products have not been able to be used in large quantities in the market because of their high price.

It is also worth noting that though water-resistant putty is known as waterproof putty by everyone, it differs from real water-repellent putty. Water-proof putty is an anti-porcelain coating that is no longer used anymore because of its dense surface and water. If the air does not go in, this waterproof putty will cause the walls to be airtight, and there will be many problems such as hollowing out of the wall surface, falling powder, etc., and the service life will not be long.

2. Interface agent

The interface agent is used to seal the base layer material. The surface of the cement wall is coated with an interface agent to improve the adhesion of the putty, effectively preventing emptying, and avoiding many wall bases caused by loose cement, loose soil or excessive drying of the cement wall. problem. In the past, it was mainly a 108-gel type interface agent, and its environmental performance was poor. The current US wall niche is an interfacial agent. Its function is to close many special features of the wall base and increase the firmness of the wall surface. The purpose of painting the wall rafter is to make the wall “rough” and improve the wall adhesion. Prevents cracking of putty.

3, plaster

Gypsum is used for wall leveling. It is divided into bottom gypsum and surface gypsum. The role of surface gypsum and putty is the same. The surface of the base gypsum is relatively thick, and it is used for the bottom layer of the wall and local leveling. Good leveling gypsum is a gas hard material, has a certain degree of water resistance, higher than the water-resistant putty adhesive strength, faster drying and solidification, can replace cement mortar used in the internal wall.

Leveling plaster is divided into plastering plaster and caulking plaster in function. The main composition of plastering plaster is gypsum and other additives. It is suitable for plastering and leveling the base layer of the basement. Leveling gypsum mortar is more stable and stronger than traditional products. It is more suitable for quick leveling of concrete, aerated concrete, and brick-mixed mortar walls. Caulking gypsum is mainly made of high-strength and fine gypsum powder and belongs to the material of the sealing layer. It is used to fill joints between plasterwork and gypsum board and fill holes in nails and other parts. It is also suitable for repairing interior wall face holes. Filling of gaps, crevices, and trunking, as well as patching and leveling where local smoothness is poor.

There are now finished interior wall plastering materials and caulking products, such as Lions' "leveling mortar." US Nest’s “wall nepal” is a good off-the-shelf leveling material by the manufacturer. It has the advantages of early strength and quickness of building plaster, thermal insulation, fire and sound insulation, and automatic adjustment of indoor temperature. It also has high bond strength and is not easy to use. Hollow cracking, easy construction, fast speed.

  

(a) the construction process:

Clean up the walls → Repair the walls → Putty → Brush the first time Latex paint → Brush the second time Latex paint → Brush the third time Latex paint

(B) Construction Operations:

1. Clean up the wall surface: Remove the skin from the wall surface and the loose part, and make up with cement mortar, remove the residual ash, and then sweep the wall.

2. Repair the wall surface: Use water-gypsum to level the wall bumps and potholes, etc., dry them, and then use sandpaper to rub off the protrusions to sweep away the dust.

3. Putty: The number of times the putty can be scraped can be determined by the level of the wall surface. The general condition is three times. The polyvinyl acetate emulsion for the kitchen, toilet, and bathroom is: cement: water=1:5:1 water-resistant putty. The first pass is covered with a rubber scraper horizontally. A scraper is followed by a scraper. The joint must not be left open. The final end of each scraper must be clean. After drying, sandpaper is used to polish the puffer and spots, and then clean the walls.

4. The second time, the rubber scraper was used to scrape vertically, and the materials and methods used were the same with the first time putty. After drying, the sandpaper was smoothed and cleaned.

5. The third time, use a rubber scraper to make up the putty or scrape the scraper with a steel scraper. Scrape the wall, dry it, and grind it with fine sandpaper. Do not leave or put on the putty.

  

The wall surface treatment is to make the wall surface smooth, clean, dry and free of cracks, voids, and solid without dust.

1. The concrete or plastering wall of the new building should be painted with an alkali-resistant primer before scraping the putty.

2. The old wall surface should be cleared of loose old decorative layers and painted with an interface agent before application.

3. The moisture content of concrete or plaster base layer shall not be greater than 8%.

4. The primary putty should be flat, strong, firm, non-powdered, and the bond strength of the skin and crack putty should be in accordance with regulations.

5. The flatness of the grass-roots surface, the verticality of the facade, and the yin and yang angle should meet the requirements for advanced plastering.

6. The base surface color should be the same.

  

1. The putty should be matched with the performance of the paint, solid and firm, and must not be powdered, peeled or cracked. The dark trough in the kitchen and bathroom must be filled with cement to prevent cracks in the future wall tiles. Other rooms are filled with plaster or quick-stick powder to prevent cracks in the wall paint. Scrape the general putty powder due to limited performance, can not exceed 3mm thickness, if the scraping is too thick in the future prone to fall off, cracking and so on. Putty scraping total thickness should be 2-3mm is better, it is best not to exceed the thickness of putty 3mm above, to prevent local overtime due to excessively long time, so as not to leave unnecessary hidden dangers.

2. The coating solution must be well-mixed, and the viscosity is too high to add water. The amount of water added is based on the construction consistency. Stir the mixture well and leave it for 10 minutes before mixing.

  

1. The wall of old house or wall that has been flaking and flaking off should be removed from the original wall putty to expose the cement wall and then putty.

2. Other different wall surfaces should be treated after the completion of the hydropower reform.

3. The yin and yang angles (wall angle refers to the angle of the recessed corner, such as the angle between the top surface and the surrounding walls; the wall angle refers to the protruding corner, such as the angle between the window opening and the wall). Once the wall is solid, then start applying cracks. The location of the patch is generally the non-bearing wall, the junction of the load-bearing wall and the non-bearing wall, and the opening position of the construction hole. The purpose is to prevent cracks. Especially in the surrounding area of ​​heating, many people do not have a patch when constructing, and sometimes the walls are cracked for half a year.

4. The load-bearing wall is in the place where there are cracks, and the light walls are best patched. There are cracks in the stickers. If you paste the kraft paper, the effect will be better. After the cloth is finished, it must be puttyed. Before painting the wall, it is necessary to scrape the putty. Usually it takes 1-3 times, during which the normal dry time is 1-2 days. However, when scraping putty on rainy days, use a dry cloth to wipe off the wall vapour to keep the wall dry as much as possible. At the same time, according to the actual conditions of the weather, the time for putty drying should be as long as possible, generally 2-3 days is appropriate. After the wall putty is smoothed and polished, a varnish or base film is applied to the wall, and then the paint can be applied.

5. The special wall is mainly based on the different grass-roots to do a special treatment of crack prevention, of course, can not ignore the harmony with the overall home environment.

6. The combination of wallpaper and paint on the wall: the combination of wallpaper and latex paint solves the problem of easy cracking at the corners, and also creates a certain impact on the visual space. It is necessary to brush the paint first, then press the wallpaper on it again, and pay attention to the professional construction team when it is not possible to stick the wallpaper, otherwise it is prone to flaws and impetuousness.

7. Hollow wall with man-made board decoration: generally used in the entrance or in a large space that needs to be divided. If you want to allow walls to hang items, you cannot use plasterboard as the substrate, but use wood-based panels. Putty putter on the artificial board, but the putty is thin without the wall effect, the putty is thick and easy to peel off, so it should be just right in the base layer. It is best to fight crack bandage before scraping.

8. Wall coating construction: Since the wall is hollow, it is easy to crack, so before the brushing, line a layer of kraft paper that can resist cracking. Do not apply too much glue to prevent cracking when doing the substrate. Not conducive to the health of the body.

The above is all about the "top wall construction process and precautions", if you want to learn more about decoration, please pay attention to the site decoration information channel.

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