Paint is one of the wall decoration materials in home decoration. Many homeowners often encounter the phenomenon of wall paint falling shortly after the renovation. So why did the house that had just been renovated not painted? What should the owners do in the face of this problem? The following Xiao Bian analysis and analysis of how to do the wall paint . Wall paint off reasons 1. The moisture content of the basement of the wall is too high. When the moisture spreads outwards, the pressure bulges the paint film, which usually occurs on the wall surface where the product with poor air permeability is used; 2. The waterproof treatment in civil works is poor, which causes the rain water to enter the basement on the other side of the wall through cracks or unpainted basal surfaces, or there is water leakage and the paint film is destroyed when it spreads; 3. The wall surface putty is mainly made of gypsum powder, talc powder and fly powder, which is caused by water swelling, especially the exterior wall. How to do the wall paint off Situation 1: The peeling of the wall surface paint may be due to the fact that the surface is too smooth. If the original paint is lacquer or is silty (with untreated sizing paint), the new wall paint will not stick to the surface. Or it may be wood decay or metal rust, and peeling off due to poor quality of the wall paint. A small area of ​​the wall paint is peeled off, which can be sanded with fine sandpaper, then putty, brushed with a primer, and repainted. Exfoliation over a large area must scrape all the paint off and repaint it. Situation 2: If the wall paint is foamed, first, the bubble will be pierced. If water appears, it means that under the lacquer layer there is moisture infiltration underneath or behind it. After sun exposure, the water evaporates into vapor, and the paint will be lifted up. Become a bubble. At this point, remove the blistering wall paint with a hot air gun, allow the wood to dry naturally, then apply a primer and finally repaint the entire repair surface. If there is no water in the bubble, it may be cracked wood grain, there is a small amount of air, the sun through the sun, the air expands, the paint bulge. Faced with this situation, first scrape off the blistering paint, then use a resin filler to fill the cracks, repaint it, or use no filler. After the paint is peeled off, apply a microporous paint directly. Case 3: Cracks in the wall paint This condition is mostly 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 wall paint. After the surface is smoothed, putty is put on, and the primer is applied and repainted. Wall paint construction process precautions (1) The wall should be dry (moisture content <8%), ph value <10, solid and firm, free of grease, mildew and loose material. If there are major cracks, repair it first and then sand evenly and dust it. (2) To obtain the best coating effect, after the wall is fully dried, it should be sealed and primed with a sealing primer. (3) During the construction, keep the work site tidy and pay attention to the temperature (>5°C) and relative humidity (<85%) at the work site. (4) The primer cannot be mixed with water too much, otherwise it will lose the problem of insufficient alkali resistance mask tension. The dilution ratio is 10 parts of paint plus 1 part of water. It can also be adjusted according to different construction requirements and environment, but the maximum amount of water added cannot exceed 20%. (5) In the case of paint of the same color, and the amount exceeds one barrel, it should be mixed and diluted before use. (6) The construction should be from top to bottom, before the ceiling. Usually two to three coats of paint should be applied. After the first pass, the paint should be applied for a second time. Each pass should be no less than 4 hours apart (at least 4 hours apart). Wall paint tips 1, the wall paint does not dry indoor ventilation is not good or the temperature is too low, the wall paint will dry slowly. It is possible to open all doors and windows to promote ventilation, or put a heater indoors to increase room temperature. If it still fails to solve the problem, it may be that the painted surface is greasy. This can be done with a chemical paint remover or a heating method to remove the wall paint, thoroughly clean the surface, and then repaint it. 2, paint stick on the insect as far as possible when the wall paint is not dry, remove the insect, and then use a brush to dip a little oil repair surface. If the wall paint has started to dry out, wait for the paint film to harden completely, and then wipe off the bug. This will not mess the surface. What should I do if I lose paint on the wall? After reading the above article, you don't have to worry about the paint on the wall. For more information on wall paint removal, please continue to pay attention to information on this site. Wall paint wall paint wall construction An Outdoor Post Light is a type of Lighting Fixture that is designed to
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