It may come as a surprise to the layperson, but paints and coatings are very complicated chemicals, and there are a multitude of problems that can occur with painted finishes. If you have a situation where paint is failing in any way, then log onto the Rohm & Haas Paint Quality Institute's Paint Problem Solver at www.paintquality.com/failures/failuremenu.html. Here you can not only observe the various types of failures, but their causes and solutions as well.