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How to remove wallpaper paste
Protect your room so you can remove wallpaper paste from the walls.
The job can get pretty messy, so it's a good idea to cover the floors and and other parts of the room before you get started. If everything's already protected because you just stripped your wallpaper, all the better.
Tape off and cover outlets, switches, vents, baseboards and trim with painter's tape or plastic covers. Cover floors with plastic or canvas tarps near all walls where you will be working.