Can you apply drywall sealer on wallpaper seams?

When it comes to renovating or updating your walls, you often have to make decisions about what materials and techniques to use. Sometimes, you may even have to tackle unusual situations, such as wallpaper seams that have become visible over time. In this article, we will discuss whether or not you can apply drywall sealer on wallpaper seams and explore alternative solutions to address this common issue.

Understanding Wallpaper Seams

Wallpaper seams are the areas where two strips of wallpaper come together. Even with careful installation, seams may become visible over time due to various factors such as shrinkage, settling, humidity, or poor initial application. When these seams become noticeable, they can be a source of frustration, as they interrupt the smooth and seamless appearance of a wallpapered wall.

The Purpose of Drywall Sealer

Drywall sealer, also known as primer, is a product used to prepare bare drywall before painting or wallpapering. It seals the surface, creating a uniform texture, enhancing the adhesion of subsequent layers, and preventing the absorption of moisture. While drywall sealer is commonly used for preparing bare drywall, its application on wallpaper seams requires careful consideration.

Applying Drywall Sealer on Wallpaper Seams: Factors to Consider

1. Thickness and Texture: Unlike bare drywall, wallpaper has a thin and delicate surface. Applying drywall sealer directly on the wallpaper seams can result in a thick and uneven texture, potentially causing the seams to become even more visible.
2. Working with Water-Based Sealers: Many drywall sealers are water-based, and using them on wallpaper can cause the paper to expand or become discolored. This could lead to further damage or the need to remove and replace the wallpaper altogether.
3. Limited Application: Applying drywall sealer on wallpaper seams may only mask the problem temporarily. While it can make the seams less noticeable, it does not fully address the underlying issue. Therefore, it may be necessary to explore alternative solutions to achieve a long-lasting and aesthetically pleasing outcome.

Alternative Solutions for Wallpaper Seam Repair

1. Re-Adhering the Seams: One option is to address the seams directly by carefully re-adhering them using wallpaper paste or adhesive. This method requires patience and precision, as you need to apply the paste underneath the edges of the wallpaper and smooth it down to ensure a seamless appearance. It’s important to allow sufficient drying time and avoid excessive moisture, which could damage the wallpaper.
2. Wallpaper Seam Repair Tools: There are specialized tools available that can help repair wallpaper seams. These tools typically involve injecting adhesive or paste through the seam, securing it without the need for removing or reapplying the wallpaper. This method requires skill and experience to achieve a professional-looking result.
3. Wallpaper Borders or Trim: Another solution is to strategically place wallpaper borders or trim over the seams. This can help disguise the seams and create a visually appealing design element. However, it’s important to choose a border or trim that complements the existing wallpaper to ensure a cohesive look.

While it may be tempting to apply drywall sealer on wallpaper seams as a quick fix, it is generally not recommended due to the potential risks and limitations. Instead, consider alternative solutions such as re-adhering the seams, using specialized tools, or adding wallpaper borders or trim. Depending on the severity of the issue and your level of expertise, it may be beneficial to consult a professional to ensure the best possible outcome. With careful attention and the right approach, you can effectively address visible wallpaper seams and restore the seamless appearance of your walls.