Can you paint over wallpaper paste?
Similarly one may ask, do you have to remove wallpaper glue before painting?
Though a time-consuming task, removing wallpaper glue requires only a few simple techniques and tools found around the home or available in most local hardware stores. Make sure you remove all wallpaper glue residue before repainting the surface. Any residue left on the walls is likely to cause paint to lift off.
In this manner, is it okay to paint over wallpaper glue?
There is no way to get off all of the wallpaper glue, so you have to prime the walls with an oil based primer, before applying a paint. Once the cracked areas are removed, prime the walls with an oil based primer. If the wallpaper glue has a texture, you will want to smooth those areas out before priming.
Oil-based primer or priming shellac covers the pattern and seals the paper against moisture to keep the paper from bubbling and the glue from loosening underneath new paint. You can use either latex or oil-based paint over the primer or shellac.