Oil-based primer seals in any old glue from the paper and prevents any paint failure from occurring down the road." If you want to cover a wallpaper that's a dark color or has a bold print ...

“Although removing wallpaper is always the best route ... seals in any old glue from the paper and prevents any paint failure ...

A stock image of a person removing wallpaper. A stock image of a person ... "Damn that is a critical integrity failure." User7648091785498 wrote, "Oh man... you need a structural engineer." ...