Easily hang a wallpaper border over your existing wallpaper with a vinyl-to-vinyl adhesive
Like any wallpapering project, you're most likely to be successful if the surfaces are clean and smooth. If you're installing a wallpaper border over existing wallpaper, you'll get the best results using a vinyl-to-vinyl adhesive.
This guide outlines the steps for prepping the surface and hanging the border over your existing wallpaper.
WHAT YOU NEED FOR THIS PROJECT
• Using the width of the border as a guide, prime the wall or surface area where you plan to install the border.
• Plan your starting point so that if there is a mismatched seam, it'll fall in an inconspicuous place. If you're going to be hanging a border as a chair rail, use a level and draw a light pencil line around the room at the right height.
• Begin by hanging the first strip at a corner, overlapping the border onto the adjacent wall about ¼ inch.
• Have a helper hold the border while you hang it and smooth it with the smoothing brush.
If the seam falls in the middle of the wall, overlap the border strips so that the patterns match, then cut through both layers with a utility knife. Remove the cut ends and then press the border flat with the smoothing brush.
• Overlap the border onto the wallpaper.
• Use a straightedge and razor to cut through the underlying wallpaper along the border's edge.
Press the border flat with your hand and finish the border with a smoothing brush.