The best wallpaper cover primer all in one up there is' Why use Wallpaper Cover Up? - Obliterates wallpaper print to a smooth finish - Prevents blistering of wallpaper - Blocks stains
Zinsser Bulls Eye 1-2-3 Interior or Exterior Multi-Purpose Water-Based Wall and Ceiling Primer (1-Gallon) in the Primer department at Lowes.com