Sorry, the wallpaper is moldy.

First of all, the reason why most wallpaper is moldy is not the wallpaper itself, but the wall. Many walls in China are not up to standard in quality and easy to leak water. However, PVC wallpaper has poor air permeability, and wallpaper glue is organic matter such as glutinous rice flour, which is easy to mold. A good way to solve this kind of problem is to choose a good moisture-proof wallpaper basement membrane.

There is another reason for mildew, which we can easily ignore. In wallpaper construction, if the glue is not completely dried, there will be hall wind or large temperature difference between indoor and outdoor, which will easily lead to curling and bulging of the wallpaper, and mildew will occur in the future due to the long-term existence of moisture and air in the wallpaper. Therefore, the room that has just finished wallpaper should be closed and dried in the shade. After the wallpaper is laid for 3 days, gently wipe off the residual wallpaper glue at the seam of the wallpaper with a wet towel. At this time, the whole room can be completely ventilated. This is related to wallpaper construction. Try not to soak the wallpaper before pasting, otherwise it will easily make the wallpaper moldy.

The problem of environmental humidity is also the cause of mildew, mainly in the rainy season in the south. Even most people think that wallpaper should not be pasted in southern weather like Hainan, Guangdong. Actually, it's not. Just pay attention to the ventilation of the room and stick wallpaper to avoid the rainy season.

The above is to prevent the occurrence of wallpaper mildew, but what if wallpaper mildew occurs?

First of all, if there is a large area of mildew and the remedial measures are insufficient, the best way is to replace the wallpaper as a whole. If the area is not very large, it is recommended to wipe it with soapy water or detergent first. If not, wipe it with a cloth soaked in disinfectant alcohol. If it's not too serious, it can be removed after two or three rubs. Another way to remove mold is to use bleach. But it is easy to irritate the skin, so be sure to wear rubber gloves when using it, and use too clear water. Some people may worry that without bleach, the original color will be removed. Some special wallpaper mildew inhibitors can be used to treat the mildew spots on the walls.