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In strict accordance with the specifications, the old base layer of the wall should be cleaned up in order to make new putty.
layers and paint surface layers; But now the labor cost is very expensive, if the original joint surface is very reliable, the cost of shoveling the old wall skin will not be less, in fact, it is not necessary. Unless the mechanical is used to shovel on the wall, this layer of the base layer can not be removed to be removed, but the cost of doing so is very high, so very few people will use this method when decorating, most of the methods used are to remove the wall that can be eradicated, and then the one that cannot be eradicated will be retained on the original wall, and then do a special treatment when doing a new white.
<> these wall skins really want to shovel off unless even the wall base decoration (plastering layer) is shoveled, otherwise it is not a thing that can be done by dividing five by two, if you take tough measures to shovel the wall skin, it may damage the inside of the wall, so it will outweigh the loss! If there is no better glue in the local area, choose materials that can decompose formaldehyde, such as net aldehyde mud, bricks that can decompose formaldehyde and latex paint.
etc., which can maximize the decomposition of formaldehyde at home.
Even if the wall bottom is good, since it is to be re-painted, at least it is old, there is a lot of dust on it, and the original wall is generally thrown light, that is, it is smooth to the touch, in this case, the adhesion is not enough, can not be directly painted, you need to polish some walls, if the requirements are a little higher, the flatness of the top surface and the verticality of the wall are required.
If you meet the standard, you will need to level the top wall, and some old walls also need to hang fiberglass nets, which also require costs when it comes to these projects.
There are two reasons, one is that the budget to him is not enough to make money according to the routine, and the other may be to cut corners, and it is also possible to cut materials later. In this case, it is necessary to follow the scene more. The powdering phenomenon refers to the long-term use of the wall or the leakage and mildew, which makes the paint protective layer on the surface of the putty paste ineffective, so that the wall is dusted.
It is characterized by rubbing your hands or clothes against the wall, and your hands or clothes are full of white powder.
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Enter the area and get the decoration for free**].
1. No, you cannot. If it has been used for more than ten years of old houses, the age of the house is relatively long, then the quality of putty and paint painted on the wall of the old house is generally poor, and the painting process is more immature, and the thickness of the painting is also relatively thick.
2. If the old house has only been used for a few years recently, then the paint painted on the surface of the old house is generally latex paint, if the owner does not remove the wall skin, directly brush the latex paint on the wall, then during the construction process, the latex paint and the putty at the bottom will absorb the moisture contained in the new latex paint, and it is easy to fall off in the later stage, so you must shovel down the wall skin first, and then you can apply the refreshed latex paint.
3. When the old house is renovated, if you want to repaint the latex paint on the wall of the old house, you must first shovel off the wall skin, so that when the latex paint is repainted later, the latex paint layer will become more firm. When removing the wall skin of the old house, it is necessary to remove it until the base layer of the wall, and the wall must be treated correctly.
4. Under normal circumstances, the base layer of the wall after the removal of the wall skin must be kept clean, dry and flat, and there can be no dirt, oil, open water, etc., nor can there be depressions or convex points, in order to strengthen the adhesion of latex paint, it is best to paint the interface agent on the wall, so as to ensure that the repainted latex paint and putty can be firmly pasted together with the wall base.
Do the math how much it will cost you to renovate your home
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No. The wall skin must be shoveled down and then applied to the latex paint, otherwise it will affect the fit of the latex paint. So the wall skin has to be laid.
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No, the old wall skin should be shoveled off so that it will be more firm to repaint.
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Of course not, if you directly brush latex paint, it is very likely that the wall will be uneven, so you still have to shovel off the wall skin.
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No, because if you don't shovel down the wall and apply latex paint directly, it will still cause unevenness and easy to fall.
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Of course not, because if you apply it to it, it will deteriorate the latex paint, so it is better not to.
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You can directly brush latex paint, and then paste a layer of wall cloth or wallpaper on the outside, which looks better and is more flat.
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When the old house is painted with latex paint, the paint on the original wall is relatively intact, do you still need to remove the paint on the original wall? Can you paint old walls directly? The original wall foundation at home has good strength, and it is a latex paint wall, so you don't need to shovel off the wall skin, you can directly paint it with simple sanding, cleaning and repair.
It should be noted that the integrity of the original wall paint film should not be damaged, and latex paint with better adhesion should not be used, otherwise the wall will easily peel off.
If the old wall of the <> home is melamine, if you want to repaint, you must scrape off the old wall skin or paint the wall, and then repaint the putty powder, and then paint it after polishing. Don't cover the dark paint with light paint, paint the wall with white paint in advance, and then wait for the paint on the wall to dry white before you can paint the color paint again. If the domestic economic conditions allow, it is recommended to do it again.
If you buy a wall that has not been renovated for a long time, then when dealing with the wall, it is possible to keep the original wall and not completely shovel it, so that the owner can use a steel brush, sandpaper or grinder to polish the wall, and then brush the latex paint.
For shoveling wall paint, you only need to shovel to the cement layer, if the cement layer is pulverized, cracked, and peeled off, you need to shovel out the red bricks and finally repaint the wall. See if there are any large-scale cracks or "cracks" on the wall. You can try to dig a hole in the wall with nails, because the loose layer of sand in the wall can dig out the sand, so it is necessary to shovel the wall and shovel off the red bricks.
Tear down the walls and check for large areas of empty barrels. Before processing and construction to the base layer, the original old wall must be cleaned up, and the bad wall must be thoroughly cleaned, and the wall that has been brushed with latex paint must be polished after disassembly, and the skin and dust on the wall must be removed after polishing.
To fill a small part of the wall with depressions and cracks, you can fill in with plaster, and make sure that the wall is smooth and clean before painting. In order to avoid the problem of peeling and cracking of the wall after painting, the environmental protection interface agent can be brushed after the wall base layer is repaired, and the putty can be brushed after the interface agent is dry, so as to ensure that the new coating is closely integrated with the original base layer.
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Hello, dear, if the old wall is not shoveled with latex paint, it can be treated by the following methods: 1Cleaning the walls:
Clean the wall with a damp cloth or vacuum cleaner to remove dust and stains so that the latex paint adheres better to the wall. 2.Polishing the walls:
Use sandpaper or a sander to sand the wall to remove bumps and particles from the wall and make it smoother. If there are obvious peeling or stripping sections on the wall, these parts need to be disposed of first. 3.
Repair the wall: If there are cracks or dents in the wall, it needs to be repaired with a repair agent. 4.
Primer treatment: Apply a layer of primer to the wall so that the latex paint adheres better to the wall and can cover the color of the old wall. 5.
Painting latex paint: Choose the right color and quality of latex paint, and apply latex paint after the primer has dried. Notes:
1.If the old wall surface has obvious peeling or peeling, these parts need to be disposed of first. 2.
It is recommended to use environmentally friendly latex paint, which is good for health and environmental protection. 3.If the wall has serious problems such as aging, cracking, mildew, etc., it is recommended to shovel and brush the wall before repainting.
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It doesn't matter much, but it mainly depends on the condition of the wall:
First, the wall should be flat, whether there is blistering, peeling, hollowing, if not, it can be used as a prerequisite for not being the best.
Second, what was the original wall of your house? If it is a plaster base, there is no need for a shovel. Scrape white sandpaper directly and polish the latex paint.
If it's putty powder, it depends on the hardness. The method is to rub the wall with your hands to see if the powder can be removed. If it is latex paint, it can be removed without shoveling.
But if this is the earliest white road, it must be shoveled. Apart from.
Thirdly, whether it is a roller brush or spraying, it has a great impact on the initial paint. You can start by filling the wall with a damp cloth and water for about two minutes. If the wall rough pie is still strong and there are no problems, then congratulations can be brushed directly.
If it blisters, it is likely to cause the same problem when you spray it. In this case, it would be better to brush a layer of glue first.
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Depending on the current condition of the original paint, it can be decided whether to remove it or not.
The wall of the old house wants to be painted with latex paint, and the original wall has the following conditions, so it is "needed" to be eradicated.
1. There is a large area of damage to the original wall: if the old house has been lived in for too long, and there is a large area of damage in different areas of the original wall, then if you want to repaint the latex paint, you have to remove the paint on the original wall;
2. There is dampness on the original wall: if the dampness on the original wall is caused by various reasons, then no matter whether the dampness is dealt with or not, it has a great impact on the wall.
3. There are dirty marks on the original wall: for the old house, usually there are a lot of dirty marks on the wall because of carelessness in life, or it is the phenomenon of children scribbling on the wall with a pen.
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It is definitely necessary to remove the paint from the original wall, because the paint on the original wall is not compatible with the newly painted paint. After a long time, it will affect the new paint and fall off.
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It needs to be removed, and the paint composition of the original wall is different from the new paint composition, and there is a chance that it will react after mixing and the durability will be reduced. In addition, it is easier to attach the new paint to the wall after removing the old paint.
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It needs to be removed, and the paint on the original wall is removed and re-painted, so that the paint will be cleaner and more translucent.
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It still depends on how long the wall has been used, if it has been weathered for a long time, then it must be removed, otherwise it can be painted directly.
Latex paint, also known as synthetic resin emulsion coating, is a kind of organic coating, which is a kind of water-based coating prepared by adding pigments, fillers and various additives to synthetic resin emulsion as the base material. According to the different production raw materials, latex paint mainly includes polyvinyl acetate latex paint, ethylene propylene latex paint, pure acrylic latex paint, styrene acrylic latex paint and other varieties. According to the different environments in which the product is applicable, it is divided into two types: interior wall latex paint and exterior wall latex paint.
According to the glossy effect of the decoration, it can be divided into matte, matte, semi-glossy, mercerized and glossy types. Latex paints have many advantages over traditional wall paints, such as being easy to apply and drying quickly. The methods of identifying latex paint include looking, smelling, wiping, brushing, pulling, and trying.
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Thank you for your trust, and personally put forward some views on this issue for your reference; The first floor is generally damp, but there should be room for improvement; e.g. whether the branches outside the building can be pruned; Whether the drainage ditch outside the building can be dug deeper, at least lower than the indoor ground; Open more windows on sunny days, etc.; (Find out more about the reasons and improve it from the source), usually put lime bags in some corners, dry tea leaves in the cabinet, etc., and dry the sun on sunny days; Try not to touch the wall of furniture; , the wall production shovel off the old stucco layer, etc., after drying with a layer of cement mortar powder, a batch of moisture-proof putty dry and then use the bottom cover, dry after the normal batch of putty, dry after grinding, rolling latex paint;