When painting a woodworking project, cabinets, or wood trim, paint drips are a common problem, and they can be especially frustrating when they dry before you notice them. Paint drips are usually caused by applying too much paint to your project in a single coat, typically from an overloaded paintbrush. Gravity causes the excess paint to run, and as it begins to dry, the paint congeals in visible drips. The good news is you can fix paint drips even after the paint has dried, and it’s even easier if you catch them while the paint is still wet.
Source: The Spruce