Long-Term Corrosion Protection for Buried Pipelines: Cutting Cathodic Protection Cost with Non-Shielding Coatings

From JPCL, March 2019

By Dr. Jeffrey David Rogozinski, Sherwin-Williams Protective & Marine Coatings

Buried transmission pipelines face a constant safety threat from corrosion. Pipeline owners and operators typically specify the application of an external barrier system to supplement the impressed current cathodic protection (ICCP) system, such as a coating or wrap, to the pipe to provide primary corrosion protection. A further aspect of the barrier coating is that it reduces the energy consumption requirements of the ICCP. This article discusses how the combination of FBEs and ICCP systems can help pipeline operators safely, efficiently and cost-effectively move assets....