In today's home decoration trends, wallpapers are increasingly popular. Compared to traditional latex paints, they offer more personalization, are eco-friendly, and easier to clean. However, it's common for many families—especially those in the south—to experience mold on their wallpaper after installation. This is not always due to the quality of the wallpaper itself, but rather other factors that contribute to the problem.
One major cause of moldy wallpaper is the condition of the wall surface. In many parts of China, walls are not well constructed and tend to be prone to moisture seepage. Additionally, PVC wallpapers have limited breathability, and the adhesive used (often made from organic materials like glutinous rice flour) can become a breeding ground for mold. To prevent this, it's essential to use a high-quality moisture-proof base film before applying the wallpaper.
Another often-overlooked reason is improper installation. If the glue isn’t fully dried or if there’s a sudden temperature change between indoors and outdoors, the wallpaper may lift and trap moisture underneath. This creates the perfect environment for mold to grow over time. After installing the wallpaper, it's important to keep the room closed for at least three days to allow the glue to dry properly. After that, gently wipe away any excess glue with a damp cloth, then open the windows for proper ventilation.
Environmental humidity is another key factor, especially during the rainy season in southern regions. Many people avoid wallpapering during this time, as high humidity can lead to mold growth. However, with proper ventilation and timing, it’s still possible to install wallpaper successfully.
If mold does appear on your wallpaper, here are some solutions. For large areas of mold, replacing the entire wallpaper is the most effective option. For smaller spots, you can try cleaning with soapy water or a mild detergent. A damp cloth with alcohol can also work for light mold stains. Rubbing the area two or three times should help remove the mold. Another method involves using bleach, though it can irritate the skin, so wearing gloves is recommended. Some people may worry about damaging the wallpaper’s color, but there are special anti-mold agents available that are safe for use on paper-based surfaces.
By taking these precautions and knowing how to handle mold when it occurs, you can enjoy beautiful, long-lasting wallpaper in your home.
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