Can You Use Paint Primer Under Wallpaper. The key to painting over wallpaper sizing is using the correct primer. Scrub gently and try not to get the wall too wet.
Latex paint is commonly in contact with the wet wallpaper paste for a day or longer during the drying process. Wallpaper Primers - Sherwin-Williams. Apply primer in preparation for painting over wallpaper glue Next you need a high-quality primer.
Chances are excellent that the paint on your wall is some form of latex paint.
No matter which type of topcoat you will be usingoil-based or water-basedyou want to use an oil-based primer. Its essential to get your wallpaper ready for those colorful coats of paint by priming. Additionally you will need primer if your wallpaper has pre-adhesive on it because the latex will soften under the paste. But it should be noted that this is not a guarantee against the problems discussed above.