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Wall appliques, sometimes called wall decals or stickers, are made to be simple to remove and reuse. Over time, the appliques may adhere to the wall tightly or lose adhesion and fall off the wall. If you ever find a sticker will not peel off the wall, it is unlikely that you will be able to reuse the sticker. However, if your sticker falls off the wall, you can alter it to better adhere.
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Clean the area of the wall where you wish to apply the applique using a warm, soapy towel. Rinse the area with a wet towel and allow it to air dry.
Examine the back of the wall applique for any dust, dirt or muck. If the back is dirty, the applique will not stick to a wall.
Attempt to press the sticker onto the wall. Roll or run a level object, such as the edge of a book, over the surface of the applique. This helps the sticker adhere to the wall.
Pull the sticker off the wall, if it does not adhere correctly. In some cases, stickers refuse to adhere completely and will already be detached from the wall. Rip a piece of double-sided tape off the roll of tape using the perforated edge on the roll. Apply three to six pieces of tape along the edges of the applique.
Attempt to press the sticker onto the wall. Roll or run a level object over the surface of the applique again. Double-sided tape will not damage the wall during application but it can damage paint or wallpaper if removed incorrectly.
Remove the wall decal if it refuses to stick. Add several piece of poster mount to the edges of the decal and attempt to press it into the wall again. Poster mounts are designed so that they do not damage wallpaper and paint.
To remove an applique or tape without damaging the wall, place a warm, damp towel over it. The heat helps dissolve the glue of the applique. Though this process prevents damage to your wall, it makes the applique impossible to reuse.