Common sense of coating: the cause of wall mildew

Core tip: high humidity is the cause of wall mildew Why is it easy to get moldy on the wall back to Nantian? It's needless to think that the humidity is too high to get rid of But is it in the case of high humidity, the wall will be moldy? Not necessarily! Let's see the detailed reasons for the moldy wall 1、 External cause: excessive humidity Going back to the south is a phenomenon of weather returning to the tide The moisture with too high concentration in the air will agglomerate on the surface of supercooled objects, such as wall coating, and produce water drops When the water vapor adheres and soaks into the wall paint film surface for a long time, it is easy to induce paint Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: humidity is the cause of wall mildew analysis why back to the south of the wall easy to mold? Do not think, humidity must not be off the relationship But is it in the case of high humidity, the wall will be moldy? Not necessarily! Let's see the detailed reasons for the moldy wall 1、 External cause: excessive humidity returning to the south is a phenomenon of weather returning to the tide The moisture with too high concentration in the air will agglomerate on the surface of supercooled objects, such as wall coating, and produce water drops When water vapor adheres to and soaks into the surface of the wall paint film for a long time, it is easy to induce mold on the surface of the paint film Generally, at this time, due to excessive humidity, there are three places where mould occurs, namely ceiling, water area and dark corner 1 At present, the ceiling of many guest, bedroom, dining room and other spaces is made of keel and artificial board, and the surface is coated with a layer of paint Under normal conditions, the moisture content of the board is relatively low, but when the humidity in the air is very high, the board is easier to absorb water than the wall, and mold is more likely to appear when the ventilation is not smooth or the temperature is low 2 The wall of the area relying on water, such as the wall of the area relying on kitchen and bathroom, has a high humidity in daily life However, due to the waterproof, it is generally not moldy But when we go back to the south, there will be a "humidity superposition effect", which makes the originally humid areas become more humid, thus causing mildew 3 Due to the temperature deviation and poor ventilation in the dark corner, some walls in the dark corner are more likely to produce mold And like some areas with good light and ventilation, there is little mildew basically 2、 Internal cause: the quality of wall coating is not up to standard 1 Those who have studied the politics of junior high school and senior high school have known that internal cause is the decisive factor In the case of moldy walls, fundamentally speaking, it is the poor antibacterial and mildew resistance of the coating products themselves Due to the poor mildew resistance of the product, water vapor is easy to penetrate into the inner layer of the wall, which leads to mold breeding And if is uses the mildew proof effect good quality coating, then even if the humidity is higher, the wall surface is also very difficult to mold 2 Improper wall painting construction and improper operation in the process of wall painting can also easily lead to mildew of paint film in the southern sky Let's see which wrong construction methods will lead to moldy walls (1) Excessive dilution of paint before painting on the wall requires the deployment of paint At this time, if the dilution is excessive, it is easy to cause the paint film to be too thin, thus weakening the anti mildew function of the paint film and making the water vapor more easily penetrate (2) When painting the wall when the humidity is too high, pay attention to the weather conditions If the humidity is too high, it is easy to cause the drying speed of the paint film to be too slow In the absence of other measures, the paint film is prone to mildew Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,