Painting Ideas & Tips
  • June 26, 2018
  • Home Renovations

How To Sand Stucco Smooth?

Smooth Stucco Vs. Rough Stucco

Rough stucco was the most used for interior and exterior surface till the late 80’s. But today rough stucco is not a preference to most of the homeowners. Rough stucco is outdated due it’s rough look and touch. So many are opting for the soft stucco. If your home already has rough stucco, then know how to sand stucco smooth with simple steps.

Materials Required

  • High Grit Sanding Paper
  • Primer
  • Smoothing Filler
  • Light Grain Sanding Paper
  • Smoothing Trowel

Steps for Converting Rough Stucco into Smooth Stucco

1. Smooth the Surface:

Using a high grit sanding paper, sand down the rough stucco to as smooth as possible. The smoothing process is to be completed before applying the other products.

2. Wash off the Surface:

Wash off the surface of the stucco wall using a hosepipe. Make sure you remove the entire dirt. Allow the surface to dry.

3. Apply the Primer:

After the surface is dried completely, it’s time to apply the primer. Use a roller to apply the primer on the surface of the stucco wall. Apply a thick coat of the primer to fill up cracks and uneven spots on the surface of the wall. Let the primer dry overnight.

4. Apply the Smoothing Filler :

Now it’s time to apply the smoothing filler to the stucco wall filled with the primer. The application is made with smoothing trowel. Use stokes to create an even and flat appearance. After the first coat is dried up, use the second coating to fill up the gaps and smooth out the inconsistent areas.

5. Sand the Wall:

After smoothing and drying process, Sand the wall using light grain sandpaper. The sanding process is done to get a smooth and polished look on the wall.

6. Finishing:

After all the sanding process is completed, remove the dust and give one final finish to the wall using the smoothing trowel.

Does Smooth Stucco Finish Crack?

Just like the concrete cracks, the stucco also tends to crack. The cracks happen mainly due to the stress on the surface. The stress can be internal or external. The internal stress is caused due to the poor drying process of the stucco and external stress is due to the external forces applied on the surface of the wall.

How can we Reduce the Cracks?

Reduce the cracks on the stucco by allowing it to dry for some time. Use the fiberglass mesh finish coating before the installation.

Can the Cracks be Repaired?

Professionals can repair the cracks on your smooth stucco wall. If you want to do it yourself check our previous article on how to repair stucco.


Stucco leaves a good impression and smooth texture to the interiors and exteriors of your house. If you find any cracks on the surface of the stucco wall or if you need a professional to sand your rough covering. Contact our experts at Executive Touch Painters in Toronto. Call us at (416)-410-0164 to get a Free Estimate Now!