I don't know what product you're refering to. Are you sure that you're not just looking at drywall with vinyl wallpaper on it? That's very common.
If it is vinyl wallpaper, and you've accidentally ripped off more than you wanted, you can float the wall with joint compount. Use the 'light' compound if the 'rips' aren't deep. Use multiple layers and sand. It will be VERY dusty.
And before you rip any more wallpaper off, get yourself a Paper Tiger. And while you're at the store, get some DIF Wallpaper Remover. Since the wallpaper is vinyl, you'll need a LOT of perforations for the DIF to get 'through'. (Vinyl isn't paper.) ONLY press hard enough to 'perf' the vinyl. If you press too hard, you'll leave mini 'gouges' in the drywall underneath. READ the directions on the DIF 2x's. Follow them as directed and be SURE to use HOT-HOT-HOT water. Buy some heavy gloves and one of those HUGH car sponges for the job. ANd when you're finished removing the paper, 'wash' the wall with a NEW solution of DIF to get the excess glue off. Buy some plastic to lay on the floor because you'll have paste and water residue all around from this job.