How to Get Silicone Off of Stucco

Silicone sealants are often used to seal gaps and cracks around windows, doors, and other openings in stucco buildings. However, over time, silicone sealant can become brittle and deteriorate, resulting in unsightly stains and streaks on the stucco surface. If you have silicone stains on stucco, there are several methods you can try to remove them.

1. Use a silicone-based cleaner.

There are a number of commercial silicone-based cleaners available that are specifically designed to remove silicone stains from stucco surfaces. These cleaners are typically applied to the stained area and left to sit for a period of time before being wiped off. Be sure to follow the manufacturer's instructions carefully when using a silicone-based cleaner.

2. Use a solvent-based cleaner.

Mineral spirits or acetone can also be used to remove silicone stains from stucco. However, these solvents are much stronger than silicone-based cleaners and should be used with caution. Apply the solvent to a small, inconspicuous area of the stucco first to test for compatibility before applying it to the entire stained area. Be sure to wear gloves and eye protection when using a solvent-based cleaner, and work in a well-ventilated area.

3. Use a razor blade.

If the silicone stains are thick and stubborn, you may need to use a razor blade to scrape them off. Hold the razor blade at a low angle to the stucco surface and gently scrape away the silicone. Be careful not to damage the stucco surface.

4. Clean the area with water.

Once you have removed the silicone stains, rinse the area thoroughly with water. This will help to remove any residual cleaner or solvent.

5. Allow the area to dry completely.

Allow the stucco to dry completely before applying any new sealant.

*If the silicone stains are heavy or extensive, you may need to hire a professional cleaning company to have them removed*

Tips for Preventing Silicone Stains on Stucco

* Use a silicone caulk that is specifically designed for exterior use.

* Apply the caulk in a clean, dry area.

* Avoid applying caulk in direct sunlight or in extremely hot or cold weather.

* Smooth out the caulk with a damp cloth immediately after application.

* Remove any excess caulk with a putty knife.

* Inspect the caulk regularly and reapply it as needed.