Make sure surfaces are smooth, clean and dry prior to application. Lightly sand the walls and make any necessary repairs to cracks, holes, or imperfections. Always seal the wall with a clear primer-sealer, such as Zinsser Gardz® or Roman™ Rx-35. Primers not only seal the wall, but they also provide more “wet time” for working. Primer promotes proper wallpaper adhesion and allows for easy removal. After priming, please wait at least 24 hours before beginning the installation.