It's my last room to paint on the first floor. But it's covered by wall paper. So I used the solution and tools to remove wall papers. Because my floor is hardwood, so I didn't
sprayed much solution. When I removed wall papers, some brown papers of drywalls showed up too. I didn't care about this, because I thought the primer I would use can fix the problem. Then I tried Kilz2interior/exterior water based primer-sealer-stainblocker a bit. I tried this product a bit.
No, the primer can't fix the problem. The surface still looks very urgly. If the edge of the brown paper loose and I put the primer on it, it can pop out. Now the drywall has most of the original old primer off and I can see many big brown paper spots. I was thinking to use skim coat, but i don't know if this is the right way. Can anybody please give suggestion so I can fix the surface a quick as possible and I can apply water based paint later.