One、Why do newly applied wall coverings appear to have faded
1、Excessive indoor humidity can cause moisture to accumulate on wallpaper, resulting in white stains.
2、The wall covering itself may have quality issues, or the adhesive may have been applied too thickly, causing it to seep through and leave white marks after drying.
Two. What to do if the wallpaper applied to the wall has turned white?
1. First, use a vacuum cleaner to remove dust. Then, clean with a diluted cleaning agent, or spray it onto the wallpaper. Allow it to sit for 10 to 15 minutes, and the stains will be easily wiped away.
2. Apply the adhesive using a trowel, working from top to bottom. This will ensure a more secure bond to the wall surface. Then, cut the wallpaper according to the actual dimensions. If bubbles are present on the surface, wait for the wall to dry completely before applying the wallpaper.
3. If the discoloration is severe, it may be necessary to remove and replace the affected area.