I was fixing bubbles in a section of my wall and in some areas I am to the brown "paper" part of drywall. Is there something I can do to fix it? (I don't know if it matters, but on the other side of the wall is a toilet.)
Definitely get rid of all loose material. The brown paper will work just fine as long as you haven't torn so much away that its almost impossible to get all of the loose stuff. But if it seems sound I wound just go over it with more mud. Of course if you are down to the the white core (gypsum) then you need to paper tape over that, with loose tapping mud. All purpose will work but it doesn't have as much staying power.
Last edited by redmanblackdog; 01-08-2011 at 12:28 PM.