Plastering walls is a common technique used in construction and remodeling projects to create a smooth and even surface. However, if you have a wall that already has drywall tape applied, you may be wondering if it is possible to plaster over it. In this article, we will discuss whether it is feasible to plaster a wall with drywall tape and provide you with some tips to ensure a successful plastering job.
Understanding Drywall Tape:
Drywall tape is a material used to reinforce and strengthen the joints between sheets of drywall. It helps to prevent cracks or gaps from forming over time and creates a seamless appearance. There are different types of drywall tape available, including paper tape and mesh tape, which both serve similar purposes.
Plastering Over Drywall Tape:
In most cases, it is not recommended to plaster directly over drywall tape. Plastering requires a solid and stable surface to adhere to, and the tape can complicate this process. Plaster is typically applied to the drywall surface, rather than on top of the tape. Attempting to plaster directly over the tape can result in a weaker bond and a less durable finish.
Removing Drywall Tape:
Before plastering a wall with drywall tape, it is essential to remove the tape properly. Start by using a scraper or a putty knife to gently peel away any loose or frayed sections of the tape. Be careful not to damage the underlying drywall while doing this. If needed, consider dampening the tape with water to help soften the adhesive and make it easier to remove.
Once the loose tape has been removed, you may notice some residual adhesive or paper remnants on the wall. Use a sanding block or sandpaper to smooth out any remaining imperfections and create a clean surface. It is important to remove all traces of adhesive to ensure proper adhesion between the plaster and the wall.
Preparing the Wall for Plaster:
After removing the drywall tape and preparing the surface, it is necessary to prime the wall before applying plaster. Primer helps create an even and consistent surface for the plaster to adhere to. It also ensures that the plaster will not be absorbed too quickly by the drywall, allowing you more time to work with the material before it dries.
Priming the wall involves applying a layer of primer using a roller or brush, following the manufacturer’s instructions. Make sure to allow sufficient drying time before proceeding with the plaster application.
Alternative Options:
If you are determined to achieve a smoother finish on your wall but want to avoid the hassle of removing the drywall tape, there are other options to consider. One popular alternative is skim coating, which involves applying a thin layer of joint compound or mud over the entire wall surface. Skim coating helps to hide imperfections and create a more uniform appearance without removing the tape.
To skim coat a wall, follow these steps:
- Clean the wall thoroughly, removing any dust, dirt, or loose debris.
- Apply a bonding agent or primer to the wall, which will help create a strong bond between the skim coat and the existing drywall.
- Mix the joint compound or mud according to the manufacturer’s instructions. It should have a thin consistency similar to pancake batter.
- Use a trowel or drywall knife to apply the skim coat in thin, even layers. Apply the compound in different directions to achieve an even finish.
- Allow each coat to dry before applying the next. Depending on the thickness of the coat and humidity levels, this may take anywhere from a few hours to a day.
- Once the final coat is dry, sand the surface lightly to create a smooth finish. Avoid sanding too aggressively, as it may damage the underlying drywall or tape.
- After sanding, the wall can be painted or finished according to your desired aesthetic.It is not recommended to plaster directly over drywall tape due to the potential issues it can cause. However, with proper preparation, you can remove the tape, prime the wall, and apply plaster for a successful outcome. Alternatively, if you want to achieve a smooth surface without removing the tape, skim coating is a viable option. Consider your preferences, the condition of the wall, and the final desired outcome when deciding which approach is best for your project.