How to Remove Paintbrush Marks From a Dried Paint Surface

2. Lightly sand the surface with fine-grit sandpaper. Be careful not to sand too deeply, as this could damage the paint finish.

3. Wipe the surface with a tack cloth to remove any dust or debris.

4. Apply a coat of primer to the affected area.

5. Allow the primer to dry according to the manufacturer's instructions.

6. Paint the affected area with the desired paint color.

7. Allow the paint to dry completely.