Field and laboratory exposure of various coating systems (type, thickness, surface preparation and ageing) have been undertaken to determine the future current requirement for cathodic protection of coated steel. For evaluation of results various mathematical models, theoretical and empirical, were used. The paper discusses prediction results versus test results. Some cost implementations are also presented.

Subject
Electric current, Costs, Water, Coatings, Cathodic protection, Coal tar epoxy, Constants, Epoxy coatings, Experimental data, Current densities, Steel, Epoxies, Coating systems
Keywords:
cathodic protection, coatings, coating breakdown, current density prediction
© 1993 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).
1993
Association for Materials Protection and Performance (AMPP)
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