TO APPLY TO ROUGH OR GLOSSY SURFACES:
The stickers work best on flat walls with clean, dry flat paint. They will work on other surfaces with varying degrees of success. When you get your order, try a small sticker. If it doesn't stick well, there is a product that can be used to increase the adhesion. This product creates a stronger bond. You can get it at Staples or other office supply stores. It is made by 3M and it is called Super77. Put the sticker on the wall. Spray some adhesive into a paper cup. Using a small 1/2” brush, lift the edge of the sticker off the wall and paint the adhesive on the back of the sticker. Push the edge back on the wall. The sticker will stick within a few minutes as the adhesive dries. Be careful not to get Super77 on the face of the sticker. Lighter fluid can be used to clean excess glue, but may damage the sticker. If the walls are very glossy, you can try using Hi-Strength 90 by 3M.