Review of Epoxy Polymer Thermal Aging Behavior Relevant to Fusion Bonded Epoxy Coatings Donald Kirkpatrick, Fabio Aguirre and George Jacob The Dow Chemical Company 2301 N. Brazosport Blvd. Freeport, TX 77541 Fusion-bonded epoxy (FBE) coatings and primers have a proven history of good long-term performance in protecting oil and gas pipelines from corrosion. In the past 10 years specially formulated FBE coatings have been used successfully on pipelines operating at higher service temperatures. However, as service temperatures further increase, it is important to consider that aging processes of organic materials are accelerated by increasing temperatures. Therefore, a better understanding of the variables that affect FBE thermal stability might help to predict the long term performance at higher temperatures and leads to the development of new FBE coatings. This paper reviews the state of the art of epoxy polymer high temperature stability and how this might apply to FBE coatings.