Inspect the wallpaper for any loose seams or hollow areas. As the solvent evaporates, the oil polymerizes, forming a hard, impermeable film.
Maximizing Oil Primer Coverage and Hiding Power for Challenging Wallpaper Stains
An oil based formula is specifically designed to cut through this slick surface, chemically bonding to the existing material to stop moisture from seeping through and ruining your new wall color. If there are any protruding seams or bubbles where glue remains, those areas need to be scored and gently sanded down.
The loose fibers and potential trapped air bubbles create a weak bond, causing fresh paint to bubble and peel just like the old strips below. Covering this compromised surface requires a specific approach, and using an oil based primer for painting over wallpaper is often the most effective solution.
Maximizing Oil Primer Coverage and Hiding Power for Challenging Wallpaper Stains
Any loose edges or peeling sections should be pressed flat using a wallpaper seam roller. Unlike water based options that can reactivate old adhesives or cause paper backing to swell, the oil variant dries hard and flexible, accommodating the slight movement of the old paper without cracking.
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