Wallpaper issues like lifting and bubbling are common in everyday home maintenance. Air bubbles typically appear in the center of the wallpaper, which is often caused by uneven adhesive application during installation, leading to trapped air or insufficient glue. Another reason could be the contraction of the wallpaper’s surface layer from the base, or separation between the paper layer and the backing. Additionally, alkali from the wall’s putty can cause damage over time. If you notice blistering, you can use a sewing needle to carefully puncture the bubble, allowing the air to escape. Then, inject a small amount of adhesive through the hole, smooth the area with a squeegee, and let it dry completely.
For pure paper wallpapers, gentle cleaning is essential. Use a slightly damp or dry colorless cloth to wipe the surface. In case of pencil marks, a soft eraser works well. For watercolor pen stains, soapy water can be used, while pastel smudges can be removed with a sponge. Ballpoint pen marks can be cleaned with a semi-wet cloth. For oil-based stains like grease or soup, it's best to use a professional wallpaper cleaner. Drinks and fruit stains should be treated with warm soapy water. Regular dust can be picked up with tweezers, and a portable vacuum with a dust filter can help remove loose particles without causing further mess. Always avoid using excessive moisture to prevent damage or secondary pollution.
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