How long can I live in the new house after painting?

As we all know, in daily life, after painting the walls, the room smells of paint everywhere, which will be harmful to human health. So how long can I stay after painting the wall? Many friends buy second-hand houses and like to paint themselves. How to paint second-hand houses? Let's take a look with the rabbit!

First of all, how long will it take to check in after painting the wall?

Usually, after the wall paint is completed, it can be dried into a film in 2 days, which means that the wall paint will no longer volatilize organic matter after 2 days. But if there are children or pregnant women, it is best to ventilate and cool down for a month before moving in.

Be sure to ventilate after entering the house to let the air circulate. You can also put some plants indoors, such as aloe, chlorophytum, cactus and so on. Putting a pot of chlorophytum in a room of 8~ 10 square meter can purify the air; Aloe vera: Aloe vera has a certain ability to absorb odor and has a long acting time; Cactus: Most plants absorb carbon dioxide and release oxygen during the day, but the opposite is true at night, while cactus, Sedum, aloe and chlorophytum always absorb carbon dioxide and release oxygen.

Let's take another look. How to brush the wall of second-hand house?

Case 1: If the original wall is latex paint with good foundation strength, it can be brushed directly after simple nap repair, but care should be taken not to destroy the integrity of the original wall paint film, and do not use latex paint with much better adhesion than the original wall paint, which is easy to peel; If the original wall is scraped porcelain, it needs to be redone. In fact, in this respect, it is necessary to follow a principle, that is, only those of the same nature can be renovated, otherwise they will have to be rebuilt; If the paint on the original wall is not firm, you can brush it again and soak the previous latex paint. The best way is to brush 80 1 glue, then scrape putty and polish before brushing latex paint.

Case 2: The old wall foundation is not good, so it can't be brushed directly, and it must be redone.

1, cleaning old walls: Many old walls will have oil stains, floating ash, hollowing or cracks, and the water absorption rate is low, so you should do some wall cleaning work. For the old wall surface, floating ash should be removed first to eliminate the position of sand and peeling; For the position of oil pollution, shovel off the original coating first, and thoroughly clean what cannot be shoveled off; After the wall cleaning is completed, scrape it twice with putty.

2. Scraping putty: It is best to choose putty with large particle fineness and hard texture, or add quantitative white latex to the putty to improve the hardness of the putty.

3. Polishing: Try to use fine sandpaper, generally use 400-500 # sandpaper for soft putty (such as 82 1) and 360-400 # sandpaper for hard putty (such as wall lining, which is easy to level). If the sandpaper is too thick, it will leave deep sand marks, which cannot be completely covered with paint. The polished wall must be thoroughly cleaned to avoid excessive dust and reduce the adhesion of paint. The concave-convex difference cannot be greater than 3 mm.

4. Priming: The primer must be brushed evenly to ensure that every part of the wall is brushed. If the wall eats a lot of paint, it is best to add a little water to the primer to ensure uniform brushing. Don't think that a roller is enough for primer. The brushing effect of primer can directly affect the effect of topcoat. Use the same roller as the topcoat material.

5. Repair: There will be some flaws (pits) after the putty is polished, which is generally difficult to see clearly, but it will be obvious after brushing the paint. At this time, it is necessary to patch. Pay attention to the patching must be polished and leveled, and then brush the primer with a little more water to avoid color difference caused by inconsistent water consumption with other walls when brushing the top coat.

6. Top coat: The painting quantity here is the usual painter. Do not add too much water, which will affect the thickness, feel and hardness of the paint film. Try to use better tools. The hair of the roller should not be too short, but it must be thin, so that the paint film drawn feels particularly delicate. Pay attention to the corner, the indirect stubble part in each roll and the direction of paint collection.

From this point of view, painting the wall is not difficult, as long as you consult relevant articles, write down your skills and work hard, it will generally not be bad. I want to remind you that you must remember that for a long time after in addition to formaldehyde, the walls were painted. Especially those with old people and children at home, make sure they have enough time to come to in addition to formaldehyde.