Pipeline coatings can be classified into several types, among them are polyethylene, both extruded and tape coatings, fusion bonded epoxy (FBE), coal tar enamel(CTE) and the three layer systems. The laboratory tests used to characterize these pipeline coatings are assumed to predict their performance in the ground over a 30+ year period. The three test methods described here involve measurements assumed to predict in-ground performance of the coating: Impact strength, cathodic disbonding and adhesion (peel force). These laboratory and field test methods will be discussed and their value as predictive tests will be assessed by correlation of laboratory results with those in the field. As a rule in this paper, only tape coatings will be discussed, however, occasionally, data for other coating systems will be given.

Subject
Holidays, Test methods, Water, Coatings, Piping, Adhesives, Tape, Pipelines, Fusion bonded epoxy coating, Cathodic disbondment, Coating adhesion, Barrier coatings, Adhesion
© 1995 Association for Materials Protection and Performance (AMPP). All rights reserved. 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).
1995
Association for Materials Protection and Performance (AMPP)
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