How to Seal Stucco

Stucco is a popular building material that is used for both interior and exterior walls. It is a durable and long-lasting material that can withstand harsh weather conditions. However, over time, stucco can crack and become damaged, which can lead to water damage and other issues. Sealing stucco is an important step in maintaining the integrity of the material and preventing further damage. Here are the steps to properly seal stucco:

Step 1: Clean the surface
Before you begin sealing the stucco, you need to clean the surface thoroughly. Use a pressure washer or a hose with a high-pressure nozzle to remove any dirt, debris, or loose stucco. If there are any cracks or holes in the stucco, you should repair them before sealing the surface.

Step 2: Allow the surface to dry
After you have cleaned the stucco, you need to allow the surface to dry completely. This can take anywhere from a few hours to a few days, depending on the weather conditions. It is important that the surface is completely dry before you begin sealing the stucco.

Step 3: Apply the sealant
Once the surface is dry, you can begin applying the sealant. There are several types of sealants that you can use, including acrylic, silicone, and elastomeric sealants. Follow the manufacturer's instructions for the specific sealant you are using.

Using a paintbrush or roller, apply the sealant to the stucco in a thin, even layer. Be sure to cover the entire surface of the stucco, including any cracks or holes. If you are using a spray-on sealant, be sure to wear protective gear, including a mask and goggles.

Step 4: Allow the sealant to dry
After you have applied the sealant, you need to allow it to dry completely. This can take anywhere from a few hours to a few days, depending on the weather conditions and the type of sealant you are using.

Step 5: Apply a second coat (optional)
If you want to provide extra protection for your stucco, you can apply a second coat of sealant. Follow the same process as before, making sure to apply the sealant in a thin, even layer.

Step 6: Inspect the surface
After the sealant has dried, inspect the surface of the stucco to make sure that it is completely covered and there are no missed spots. If you find any areas that need additional sealant, apply it and allow it to dry.

Sealing stucco is an important step in maintaining the integrity of your building's walls. By following these steps, you can ensure that your stucco is properly sealed and protected from water damage and other issues.