magical! Non-woven fabric can prevent 80% of wall cracks

Experience with real blood and tears: The next layer of latex paint will be cracked before it is dry. Expert advice: Non-woven fabric can reduce cracking by 80%. In most cases, wall cracking is caused by the volatilization of water. Water may continue to evaporate, so even if repaired, it may continue to crack. In addition, if only a small area is repainted, there will be a color difference between the new paint and the old paint.　　 If you have high requirements for decoration quality and want to reduce cracking, you can first paste non-woven fabric on the wall, which can reduce cracking by more than 80%. Use high-quality glue when sticking non-woven fabrics. Of course, the cost will increase.　　Do not paint the walls too quickly　　At that time, the workers painted several layers of latex paint, and they finished it in a few days. I also know that the wall paint has to wait for it to dry before applying another coat. But the workers said there was no problem, so I did not insist. Later, it was found that there were many cracks on the wall. I don't know if it was caused by not dry.　　As a water-based paint, latex paint is currently the most widely used and safest wall paint. The so-called 'water-based' means that it can be diluted with water.　　1. Popularization of decoration knowledge: The best paint for walls: latex paint 　　The advantages of latex paint are very obvious: 　　 1. Non-toxic: There are many manufacturers of latex paint, and most manufacturers do not add harmful substances. A few manufacturers use mercury in the anti-mold agent, but the content is also very small. After painting, it is ventilated and completely dried before moving in without harming health. There are also a few inferior paints sold under the brand of'latex paint', but they are easy to distinguish due to the strong smell.　　2. Convenient preparation: It can be diluted with water and is easy to construct.　　 3. Easy to clean: it is not easy to stick to dust after brushing, and it can be cleaned.　　 There are many kinds of latex paints on the market, and the brands, specifications, grades, functions and colors are very chaotic. The price also varies greatly, ranging from tens of yuan to four to five hundred yuan for a 5-liter package. Be sure to do a little homework before buying. For example, a certain brand of latex paint has many grades: five in one and two generations, five in one gold, full effect in one, pure taste and full effect (his most high-end product). Generally use five in one and two generations. If you have a little silver, you can use gold. If you want to show off, you can use the full effect. Note that there are many fake brands, it is best to buy them in specialty stores.　　 2. Popularization of decoration knowledge: Three stages of latex paint drying. 　　 Stage 1: Surface drying, which takes half an hour to two hours.　　 Phase 2: Hard work, it takes about a week, and then there is no smell.　　 Phase 3: Drying, about three weeks, depending on weather conditions.　　 Third, the decoration is most important: six reasons for wall cracking 　　 latex paint wall cracking is very common, and it appears more often in about a year after decoration, and it is most likely to occur when the seasons change. So far, the whole world has no perfect solution to this. The poor quality of latex paint is just one of the reasons for cracking. The wall has a five-layer structure, and problems in each layer will cause cracks: 　　 The first layer (structural layer): earthquakes, uneven foundation settlement, excessive temperature changes, etc. cause cracks in the wall.　　 2nd floor (joint): the joint between the new wall and the old wall, the joint between the brick wall and the ceiling, the wall groove construction place, if the material or construction method is wrong, it will be easy to crack in the future.　　 3rd layer (cement layer): the cement label is too high, the cement is out of date, the sand is too fine or the mud content is too high, the proportion of cement mortar is not correct, the cement layer is not dry and the putty will crack in the future.　　4th layer (putty layer): 　　The base layer of the original wall has not been cleaned up, the putty has not been removed, and the original latex paint layer is separated from the new putty layer. As the saying goes: 'Seven-point putty and three-point paint, good paint needs good putty'. On the market, there are many fakes of putty and latex paint, especially putty, 80% of individual small stores are adulterated. When choosing putty, you should look at the quality certificate and production date to prevent expiration. The general wall paint has matching putty for sale, it is best to choose matching putty. Layer 5 (paint layer): Brush the next layer before the previous layer of paint is completely dry. The outside is dry but the inside is not dry; or the paint is too thick at one time, resulting in low strength; or the primer is not applied, and the wall returns Alkali causes powdering and cracking of the putty layer. There are 'elastic topcoats' on the market, which can reduce the degree of cracking, but the effect is limited.　　 Remind everyone: There are also 'climatic cracking': baking during construction, exposure to the sun, strong wind blowing directly on the wall; or the temperature is too low, the topcoat cannot form a continuous film; or the temperature and humidity will crack in the future. In summer, after painting the wall, open the window to allow the wall to form a film in a short time. This cannot be done in autumn, otherwise it will shrink and deform. In autumn, keep doors and windows closed for 1 to 2 days after painting, or only ventilate in the morning and evening to let the walls dry in the shade.