Will Drywall Mud Stick to Plaster?

Will Drywall Mud Stick to Plaster?

If you’re wondering whether drywall mud will stick to plaster, the answer is yes! This makes it easy to patch plaster using the standard joint compound. By tapping joints and applying several coatings of joint cement, you’ll be able to quickly fill in holes or repair larger patches. Keep reading to learn how to do it!

  1. Start by tapping the joints with a small hammer to loosen any dirt or debris that may be stuck in there. This will also help the mud to adhere better.
  2. Next, apply a thin layer of joint compound to the area you’re wanting to patch. Use a putty knife or trowel to spread it evenly.
  3. Once the first layer is dry, apply the second layer in the same manner. You may need to add additional layers until the hole or patch is filled in completely.
  4. Allow the final layer to dry completely before painting over it or sanding it smoothly.

Patching plaster is easy when you use drywall mud! Just remember to tap the joints first and apply several thin layers of joint compound until the hole is filled in completely. Allow each layer to dry before adding another. Once the final layer is dry, you can paint over it or sand it smooth as desired.


Drywall mud, also called joint compound, is a powdery substance used to finish new walls and ceilings or to repair plastered surfaces. The compound is mixed with water to form a putty-like consistency that can be spread over joints between sheets of drywall or cracks in plaster. Once the mud dries, it forms a hard, white surface that can be sanded, painted or textured as desired.

What is Drywall Mud?

Drywall mud, also called joint compound, is a gypsum-based paste used to finish drywall joints and corners in new construction. It is also used as a plaster repair material. When mixed with water, it forms a workable paste that can be easily applied to wallboard or plaster surfaces.

What is Plaster?

Plaster is a material that is used for various purposes, such as creating casts for broken bones and making sculptures. It is also used as a coating for walls and ceilings. Plasterboard is made of plaster that is pressed between two sheets of paper or fiberglass matting. When wet, plaster can be applied to walls and ceilings to create a smooth, hard surface. When it dries, it becomes hard and brittle.

Drywall Mud vs. Plaster

Drywall mud can indeed stick to plaster walls, but it’s not always the best option. Here’s a look at some of the pros and cons of using drywall mud on plaster:


  • Drywall mud is cheaper than plaster.
  • Drywall mud is easier to apply than plaster.
  • Drywall mud can be sanded smooth after it dries.


  • Drywall mud may not adhere as well to old, crumbling plaster as it does to new plaster.
  • Drywall mud may not provide as strong of a bond as plaster, so it may not be ideal for heavier objects.

The Advantages of Using Drywall Mud

Using drywall mud has a number of advantages over using other materials for your wall repairs. Drywall mud is easier to apply, it dries faster, and it provides a smoother finish.

The Disadvantages of Using Drywall Mud

Drywall mud has a few disadvantages when used on plaster walls. First, because it is a thicker material, it can be more difficult to apply evenly. Second, it can take longer to dry, which can extend the overall project timeline. Finally, drywall mud is not as durable as plaster and may need to be replaced more often.

How to Apply Drywall Mud

Drywall mud is available premixed or as a powder that you mix with water. It’s important to choose the right type of drywall mud for your project, as some types are better suited for certain applications than others.

There are many ways to apply drywall mud, but the most common method is with a putty knife. For best results, use a putty knife that’s slightly wider than the joint you’re filling. This will help reduce the amount of mud that squeezes out when you apply pressure.

To apply the mud, simply hold the putty knife at a 45-degree angle and spread the mud into the joint, using gentle pressure. Be sure to feather the edges of the mud so it blends in smoothly with the surrounding wall surface.

Once you’ve applied the mud, allow it to dry completely before sanding it smooth. If you need to speed up the drying process, you can use a hair dryer set on low heat.

How to Remove Drywall Mud

While drywall mud can be applied directly to bare plaster walls, it is more common to apply it

Drywall mud can be removed from plaster walls using a few simple tools and techniques. First, use a putty knife or other blunt edge to score the surface of the dried mud. This will help the mud to break away from the plaster surface more easily.

Next, use a damp sponge or cloth to wet the scored area of the mud. Allow the wetted area to sit for a few minutes before attempting to remove the mud. Finally, use the putty knife or other blunt edge to scrape the now softened mud from the plaster surface. Be sure to remove all traces of mud before repainting or otherwise finishing the wall surface.

Will joint compound adhere to plaster?

There’s no definitive answer to the question of whether or not joint compound will adhere to plaster. It depends on the type of plaster, the age of the plaster, and how well the surface has been prepared.

All-purpose joint compound is designed to stick well to a variety of surfaces, but some jobs may prove more difficult than others. If you’re having trouble getting the joint compound to stick to the plaster, you can try using a setting-type compound followed by an all-purpose one.

Here are some things to keep in mind when working with joint compound and plaster:

  • The type of plaster will affect how well the joint compound adheres. Harder plasters like lime plaster will provide a better surface for the joint compound to adhere to than softer plasters like gypsum.
  • The age of the plaster also plays a role. Older plasters that have been around for decades may be more difficult to work with because they may be harder and more brittle.
  • The surface must be properly prepared before applying joint compound. This means making sure the surface is clean, dry, and free of any loose or flaking paint or plaster. If the surface isn’t properly prepared, the joint compound may not adhere properly.
  • Use a putty knife or other similar tool to smooth out the joint compound once it’s been applied. This will help ensure that it adheres properly to the surface.

Joint compound can be a great way to repair damage to plaster walls, but it’s important to keep these things in mind before starting your project.

What kind of mud do you use for plaster walls?

Spackle is a type of mud used for plaster walls. It is made of gypsum powder and binders, and has a gooey paste-like consistency. Spackle is ideal for minor repairs of plaster and sheetrock.

Spackle is used to repair small holes or dents in plaster and sheetrock. The gypsum powder in the spackle adheres to the surface and hardens, filling the hole or dent.

To use spackle, simply apply the paste to the surface with a putty knife, then smooth it over. Once it dries, sand it down so that it’s flush with the surface.

Spackle is a quick and easy way to make small repairs in your plaster walls. It’s important to remember, though, that spackle is not meant for large holes or cracks. For bigger repairs, you’ll need to use a different type of mud.

What compound is best for plaster walls?

Taping compound is the best compound for plaster walls.

When it comes to plaster walls, the best compound to use is a taping compound. This type of compound is ideal for covering cracks and applying tape.

Taping compound is perfect for embedding tape in joints for the first stage of finishing drywall joints. The compound helps to create a smooth surface for the tape, which will ultimately create a seamless finish for the drywall joint.

In addition to its ability to cover cracks and apply tape, taping compound also has excellent adhesion properties. This means that it will adhere well to the plaster wall, creating a strong bond that will last for many years.

If you are looking for a high-quality compound that will provide a seamless finish for your plaster walls, then taping compound is the ideal choice.

Tammy Slater

Tammy Slater is the founder of arew.org, a home and garden blog that provides inspiration and resources for homeowners and renters alike. A self-taught DIYer, Tammy loves nothing more than tackling a new project in her own home. When she's not blogging or spending time with her family, you can usually find her rooting around in the garden or at the hardware store.

Recent Posts