To transition a wall from wallpaper to paint, you can either remove the existing wallpaper entirely or prepare it properly so you can paint directly over it. The "right" way to paint over this wallpaper is to sand the seams, remove the dust, and then use an oil-based primer to seal the paper before painting with a water-based paint.
While removing wallpaper is a common approach for a fresh start, painting over it is an alternative method, especially if the wallpaper is firmly attached and in good condition. This technique requires careful preparation to ensure a smooth, durable painted finish.
Preparing to Paint Over Wallpaper
Painting over wallpaper requires specific steps to prevent issues like bubbling, peeling, or the pattern showing through the paint. The method described in the reference highlights key preparation steps:
Step 1: Address Seams
Wallpaper seams can create visible lines or raised edges under paint. Smoothing these is crucial.
- Action: Sand the seams lightly. This helps to feather the edges and make them less noticeable.
- Tip: Use fine-grit sandpaper (e.g., 120-grit or higher) and be careful not to damage the paper excessively.
Step 2: Clean the Surface
Dust created from sanding, as well as any dirt or grease on the wallpaper, can interfere with primer and paint adhesion.
- Action: Remove all dust and debris after sanding.
- Method: Use a vacuum with a brush attachment, followed by wiping down the walls with a damp cloth (not too wet). Allow the walls to dry completely.
Step 3: Prime with an Oil-Based Primer
This is a critical step when painting over wallpaper.
- Purpose: An oil-based primer seals the wallpaper, preventing moisture from the topcoat paint (especially water-based) from soaking into the paper and causing it to bubble or detach. It also blocks stains and patterns.
- Action: Apply an even coat of oil-based primer to the entire wall surface.
- Caution: Oil-based primers have strong fumes and require good ventilation. They also clean up with mineral spirits, not water.
Step 4: Apply Water-Based Paint
Once the oil-based primer is completely dry and cured according to the manufacturer's instructions, you can apply your desired paint color.
- Action: Paint the walls using high-quality water-based latex paint.
- Application: Apply one or two coats as needed to achieve full coverage and uniform color.
Summary of Painting Over Wallpaper Method
| Step | Action | Purpose |
|---|---|---|
| Preparation | Sand seams, Remove dust & dirt | Smooth surface, ensure adhesion |
| Priming | Apply oil-based primer | Seal wallpaper, prevent bubbling/stains |
| Painting | Apply water-based paint (1-2 coats) | Add color, achieve desired finish |
Successfully transitioning from wallpaper to paint by painting over it relies heavily on this specific preparation process, ensuring the underlying paper is stable and sealed before applying the final paint layers.
