The selection of a coating for suitable use on the exterior of a pipeline is an important consideration due to the safety and cost consequences of potential corrosion. Because there are numerous fusion bonded epoxy (FBE) mainline and field joint coating systems available, the selection of the optimum coating system is as much an art as a science.

This paper discusses some of the variables and constraints to be considered in the selection of FBE mainline and field joint coating systems; FBE coating systems in common use; the failure mechanism of pipeline coatings with cathodic protection; and laboratory screening tests used for coating selection, with a commentary regarding testing variables that may influence test results and account for differences in field performance. Finally coating characterization tests, which may be used for quality control and problem solving purposes are discussed.

Subject
Test methods, Primers, Water, Coatings, Piping, Spray coating, Impedance, Pipelines, Field joint coatings, Fusion bonded epoxy coating, Joints, Cathodic disbondment, Coating systems
© 2006 Association for Materials Protection and Performance (AMPP). All rights reserved. This work is protected by both domestic and international copyright laws. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2006
Association for Materials Protection and Performance (AMPP)
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