The answer is yes, you can apply joint compound to a sealed drywall seam. However, it is essential to consider a few factors before doing so.
Assess the Condition of the Sealed Seam
The first step is to evaluate the condition of the sealed drywall seam. If the seam is intact and the joint compound is smooth, without any cracks or gaps, there may be no need to apply additional joint compound. A properly sealed seam should already have a solid bond and a level surface, making it unnecessary to add more joint compound.
Consider the Desired Finish
Another factor to consider is the desired finish of the wall. If you are planning to install wallpaper, textured paint, or any other covering that would hide the drywall seams, applying additional joint compound may be unnecessary. However, if you prefer a completely smooth surface or an invisible finish, you may choose to add a thin layer of joint compound after the seams have been sealed to achieve the desired outcome.
Methods for Applying Joint Compound on Sealed Seams
If you decide to put joint compound on a sealed drywall seam, there are a few methods you can follow:
- Spot Filling: Spot filling involves applying joint compound only in areas where the seam may require additional coverage. This method allows you to focus on specific areas that may need more attention, such as minor imperfections or uneven spots.
- Skim Coating: Skim coating involves applying a thin layer of joint compound over the entire surface, including the sealed seams, to create an even finish. This method ensures a uniform appearance and works well when a seamless appearance is desired.
- Sanding and Retouching: If the sealed seam is slightly uneven or has minor imperfections, you can lightly sand the area and then retouch it with joint compound. This method allows you to blend the seam with the surrounding area and achieve a smoother finish.
It is possible to put joint compound on a sealed drywall seam, but whether it is necessary or beneficial depends on various factors. Assessing the condition of the sealed seam and considering the desired finish are crucial in making this decision. If the sealed seam is already smooth and intact, additional joint compound may not be required. However, if you prefer a completely smooth or invisible finish, applying a thin layer of joint compound can help achieve the desired outcome. By using spot filling, skim coating, or sanding and retouching methods, you can ensure a professional-looking finish for your drywall project.