I recently removed two layers of old wallpaper from the master bathroom of my 1995 house and discovered a strange concrete-like surface underneath. Initially, I followed advice to use a mixture of conditioner and water to peel off the wallpaper, and it worked well. However, the wall wasn't what I expected—it seems like it might be plaster or some type of joint compound that started to dissolve when I added water. I'm concerned about whether it's safe to continue using this method or if I'm damaging the wall further. Can I paint over this unknown wall material once I finish removing the wallpaper? What would be the best way to refinish it if it's in rough shape? Any tips would be appreciated!
2 Answers
It sounds like you might have a layer of plaster or joint compound that wasn’t properly primed before the wallpaper went on. That's likely why it's reacting to the water. You can paint over it, but you might need to apply a new skim coat first to make it smooth again. Check out the Vancouver Carpenter on YouTube for some helpful tips on drywall and finishes!
Yep, it's probably unpainted skim coat, and you're right that it could get a bit wavy as you remove the wallpaper. Just make sure to let it dry completely before priming. Once it's flat and dry, you can use a self-leveling paint! You might not need to prime if the surface is smooth enough, but it can help for the best finish.