TESTS SHOW BARRIER COATINGS DO NOT BLOCK CATHODIC PROTECTION

Keith E. W. Coulson NOVA Corp. Alberta Calgary Thomas J. Barlo Northwestern University Evanston, III. Daniel P. Werner Gas Research Institute Chicago Use of a barrier coating on a buried bare steel or corrosion-coated steel pipeline will not hamper performance of the line's cathodic-protection system. That's the major conclusion of research funded by the American Gas Association's Pipeline Research Committee which studied the physical and electrochemical properties of the urethane