How to Cover Wallpaper with Paint: A Step-by-Step Guide

Covering wallpaper with paint is a popular solution for homeowners looking to update a room without the labor-intensive process of paper removal. While paint can adhere to wallpaper, success depends entirely on proper preparation and the type of wallpaper you are working with. This guide will walk you through the critical steps to ensure a smooth, durable, and professional-looking finish that hides the old design effectively.

Before you open a paint can, you must assess the condition and type of your existing wallpaper. If the paper is loose, peeling, or crumbling, painting will only trap moisture and lead to further damage, resulting in bubbles and streaks. For vinyl or heavily embossed wallpaper, the surface is often too slick for paint to grip, making adhesion a significant challenge. In these cases, removal is usually the best long-term solution, but for solid, non-woven, or lightly textured paper that is firmly attached, painting can be a highly effective and cost-efficient update.

Preparation is Key

Cleaning the Surface

A clean surface is a stable surface, and skipping this step is a common reason for paint failure. Dust, dirt, and greasy fingerprints create a barrier that prevents paint from bonding correctly. Wash the walls with a mild detergent and water solution, then rinse thoroughly. For greasy kitchen walls or smoke-affected rooms, a wipe-down with a mixture of water and trisodium phosphate (TSP) or a specialized degreaser will cut through the residue and ensure a better grip.

Repairing Imperfections

Examine the wallpaper closely for any loose edges, bubbles, or tears. These problematic areas need to be addressed before painting to create a uniform surface. Use a smoothing brush to press down any lifted sections. For stubborn bubbles, carefully slit them with a utility knife, press out the air, and apply a thin layer of wallpaper adhesive. Once the adhesive is dry, lightly sand any ridges or seams with fine-grit sandpaper to eliminate texture that might show through the new paint layer.

Priming for Success

Choosing the right primer is arguably the most crucial step in covering wallpaper with paint. A standard all-purpose primer is often insufficient for this task. You need a product specifically designed to block stains and create a bond between the non-porous wallpaper and the paint. Look for a high-quality bonding primer or a shellac-based primer like Zinsser B-I-N. These products dry quickly and form a tight seal that prevents the old pattern from bleeding through and ensures the topcoat adheres securely.

Application of Primer

Apply the primer using a high-quality angled brush for edges and a short-nap roller for the larger areas. Roll the primer on in a single direction to avoid creating a texture similar to the original wallpaper pattern, which might still show through. Pay special attention to seams and edges where the wallpaper meets drywall or trim. Allow the primer to dry completely according to the manufacturer's instructions; this usually takes one to two hours. Do not rush this step, as a tacky surface will ruin the final paint job.

Selecting and Applying Paint

Once the primer is fully dry, you can move on to painting. Choose a high-quality interior paint with excellent coverage; matte or eggshell finishes are popular for their ability to hide imperfections, but they are less washable. If your room is a high-traffic area like a hallway or kitchen, a semi-gloss finish is more durable and easier to clean, even if the underlying wallpaper is slightly textured. To save time and ensure color consistency, it is recommended to use an entire can of paint mixed together.

When applying the topcoat, use a roller to cover the main surface area and a brush to cut in around windows, corners, and ceilings. Apply the paint in thin, even coats rather than trying to cover everything in one thick application. Thick paint is prone to dripping and may reveal the texture of the wallpaper beneath. If the original pattern is particularly bold or dark, you might need a third coat to achieve solid opacity. Be patient and allow adequate drying time between coats to prevent streaking or peeling.

Potential Challenges and Solutions

Even with careful preparation, you might encounter issues during the process. The most common problem is "ghosting," where the old wallpaper pattern slowly becomes visible through the new paint. This usually happens with shiny or vinyl papers and can be mitigated by applying an extra coat of bonding primer or using a slightly tinted primer to neutralize the color. Another challenge is peeling, which can occur if the wallpaper was painted originally with an oil-based paint. In this scenario, the new water-based paint may not adhere properly, requiring spot treatment or complete removal if the issue persists.

Ultimately, covering wallpaper with paint is a rewarding DIY project that can transform a room with minimal upheaval. By respecting the importance of surface preparation, investing in the right primers, and applying quality paint, you can achieve a fresh, updated look that hides the old design seamlessly. This method saves the cost of wallpaper removal while delivering a polished result that feels both new and expertly finished.