Aside from the use of successful track records, it is commonplace for coating specifications to be written based upon test criteria deemed important by specification authorities. But are the tests relevant to the intended service environment? Or has the meaning of the test data been misinterpreted? Perhaps the tests have been ascribed a level of accuracy and dependency that the test method simply cannot deliver. These are vital factors to be considered if a coating specification is to be supported in a meaningful way and to prevent all sorts of problems.

This paper describes several instances where coating specifications were built upon an inappropriate use of certain test data and the dark consequences that may result.

Proposals are given to provide better ways to conduct testing that potentially offers a more meaningful correlation with real world coating performance.

Subject
Test methods, Coating performance, Water, Coatings, Specifications, Wet adhesion, Epoxy coatings, Coating adhesion, Adhesion testing, Epoxies, Coating systems, Adhesion, Oil
© 2010 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).
2010
Association for Materials Protection and Performance (AMPP)
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