How to Prevent and Fix Caulking Bubbles

Blisters in caulking typically form when moisture trapped inside tries to escape too quickly after the caulk has developed a surface "skin." This often happens when caulk is applied:

• In direct sunlight

• On hot surfaces

• During high temperatures

• Over wet areas

While ideal conditions (cool, shady, dry surfaces) help minimize blisters, they're not always possible—so some blistering is common. Don't worry! Fixing them is straightforward.

Tools You'll Need:

• Utility knife

• Fresh caulk tube

• Spray bottle (filled with water)

How to Fix Blisters

For Dried/Cured Caulk:

1. Cut out the blister. Use the utility knife to carefully remove the damaged section.

2. Fill the gap. Apply new caulk into the cavity.

3. Smooth it out. Use your finger or a tool to blend the new caulk with the existing bead for a seamless look.
   Tip: You might need two thin layers to match the texture perfectly.

For Fresh (Uncured) Caulk:

1. Release the air. Poke a tiny hole in the blister with a pin or knife to let trapped air escape.

2. Press and seal. Gently push the blister down to close the cavity.

3. Add a top layer. Apply a thin coat of caulk over the repaired area.

4. Smooth again. Blend it with the surrounding caulk line for a clean finish.

And that's it! With these simple steps, you can keep your caulking looking professional—no matter the weather. ️✨