If you say which part of your home improvement can make your new house look like an instant, it must be the process of painting. However, the seemingly simple construction of paint contains many details that we cannot notice but cannot ignore. If we do not understand this knowledge, it may not be a brand new look for us to brush our paints. Paint paint coating construction wall paint
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Today, Xiao Bian took everyone to check inventory of those unknown paint construction. 
The exfoliation of No. 1 paint may be due to the fact that the surface is too smooth. If the original paint is glossy paint or is powdery (with untreated paste paint), the new paint will not stick well on the surface, but also due to paint. Bad quality and peeling off. A small area of ​​paint is peeling off, which can be ground with a piece of fine paper, then putty put on it, brushed with a primer and repainted. Large areas of peeling must be stripped of paint and repainted. 
No.2 paint coating foaming paint coating foaming there are two cases, the first: there is moisture infiltration, resulting in water under the paint layer, the sun evaporates into water vapor, the paint will be topped into bubbles. If this is the case, remove the paint with a hot air gun and allow the wood to dry naturally before painting. Second, the cracking of the wood grain results in a small amount of air under the paint, and the air expands and blisters. If this is the case, scrape off the foamed paint first, then use a resin filler to fill the cracks, repaint it, or use no filler. Apply the microporous paint directly after scraping the paint. 
Cracking of No. 3 Most of the time, the paint was removed with a chemical paint remover or a hot air spray gun, and then repainted. If the fracture range is not large, then sanding blocks or wet or dry sandpaper can be used to dilute the broken paint. After the surface has been smoothed, apply putty, apply a primer, and repaint. 
No.4 paint paint flow paint a brush too thick, it will cause runny. The paint can not yet dry, brush the paint to open. If the paint has started to dry out, wait for it to dry. Smooth the surface of the paint with a piece of shredded paper, wipe the surface clean, wipe it off with a damp cloth, and then re-apply the paint on the outside. Be careful not to brush too thick. 
No. 5 Mouldy discoloration This problem occurs most often on wet paint surfaces, such as when water vapor condenses on glass and metal surfaces. Brown-black stains often occur. At this point can be used fungicides, according to the instructions of the instructions to deal with moldy parts, to be killed after the mold, the surface clean and then re-paint. 
There are many causes of stain on the surface of No. 6 stain paint. For example, the water in the latex paint dissolves the material on the wall and the paint is rusted. The wall surface that is rubbed with the steel wool can cause rust. Dark pipe leaks in the wall appear stains. To prevent blemishes, a layer of primer containing aluminum powder may be applied first. If stains are already present, remove the emulsion paint from the blemishes, brush the primer containing aluminum powder, and then re-paint. 
The reason for the lack of luster of No. 7 is that it is not painted on the primer, or that the primer and the inner layer of paint are not dry, and there is a glossy paint on it. As a result, the glossy paint is absorbed by the wood and loses its luster. The bad paint is one reason. Grind the old paint with wet or dry sandpaper, brush the dust, wipe the surface with a clean, damp cloth, and dry the paint again. Special attention should be paid to the fact that if the paint is applied under very low temperatures, the paint film may lose its luster after drying. 
The wrinkling of the No. 8 film is usually caused by the second pass of the paint after the first pass of the paint. At this time, the solvent in the lower layer paint will affect the upper layer of the film to make it wrinkle. In this case, the wrinkled paint film can be removed by chemical amalgamation or heating and repainted. Remember, we must wait for the first time before we can paint on the second pass. 
No. 9 Paint Coarse The newly painted surface is rough, usually the paint brush used is not clean or contaminated by the surrounding environment. It is also possible that the paint is mixed with patent leather. It is not precipitated or filtered before use, or it is dusted when the paint is dry. In order to prevent these problems from occurring, clean paint brushes and paint buckets must be used. Old paint must be filtered with paint filter paper or clean nylon stockings before use. In addition, the painted surface should be covered with a cover or cardboard when the paint is dry to prevent dusting. If the paint is rough, after it is dry, polish it with wet or dry sandpaper and wipe it again. Pay special attention to the paint brush must be clean. 
No.10 Paint does not dry well in the room or the temperature is too low, the paint will dry slowly. At this time, all doors and windows can be opened to promote ventilation, or put a heater in the room to increase the room temperature. If this does not solve the problem, the painted surface may be greasy. At this point, remove the paint with a chemical paint remover or heat, wipe the surface thoroughly and repaint it. 