A laboratory test program was conducted to evaluate and compare six commercial internal tank linings for application in a large storage tank. To accommodate possible use of the products under more severe conditions, the tests performed and the conditions used, while relevant, were more severe than the expected service conditions in the storage tank. The laboratory test program evaluated and compared a range of physical and performance related characteristics of the selected products based on the intended service. The test methods used were: Flexibility Test and Impact Resistance before and after Soak Testing; Cathodic Disbondment; Soak Adhesion; Standard Atlas Cell; Pressurized Atlas Cell and Electrochemical Impedance Spectroscopy (EIS).

Results demonstrated significant differences in the performance of the coatings, indicating that certain products would be expected to give significantly longer protection to the steel substrate than others do.

Subject
Test methods, Electrochemical impedance spectroscopy, Coating performance, Water, Coatings, Electrochemical cells, Flexibility, Walls, Epoxy coatings, Novolac epoxies, Corrosion losses, Coating adhesion, Blistering
Keywords:
Tank Lining, Flexibility Test, Impact Test, Cathodic Disbondment Test, Soak Adhesion Test, EIS, Electrochemical Impedance Spectroscopy (EIS), Standard Atlas Cell, Pressurized Atlas Cell
© 2006 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).
2006
Association for Materials Protection and Performance (AMPP)
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