I am having trouble removing the glue that is left on the walls after I removed the wallpaper. I have been working on the same area (approx 4 x 4) for over an hour maybe 2 and there is still glue there and I am starting to ruin the drywall. The original builder did not really paint or size the walls, they just stuck it over the drywall.

Anyway I have tried DIF, Fabric Softener, Warm Water, TSP, scraping. I am down to sanding it the best I can but what can I use to prep the area so I can paint? (There will probably be some glue left.) I will be using drywall compound to fix the tears and face removal of the drywall, but I am looking for suggestions on how to get the most glue off and also, knowing some will still be on the walls, how can I prep them for painting??

Wallpaper glue won't come off the walls

removal of wallpaper glue