Can anyone please help. We had walls that were painted with 2 coats of vinyl silk but wanted to wallpaper so we sized them with wallpaper paste. We were going to paper 3 walls but after finishing the chimney breast have decided that it will look too busy and opted just to do 2 walls. The problem is that we have a sized wall that we now want to paint. Can we paint over size or is there a wayof removing it back to the vinyl silk before applying a top coat?