Laboratory testing services can assist coating specifiers in choosing appropriate products for protecting transportation equipment from corrosion. To make the most efficient use of resources in conducting salt spray corrosion tests, the test substrates used and the methods employed for evaluating the results should be chosen to yield the best information possible in the least time and expense. To empirically identify this optimum condition, railcar exterior coatings were applied to three different types of steel substrates and exposed to salt spray for periods ranging from 100 to 1700 hours. The results obtained using scribed panels over a short duration were compared with the information derived from longer term tests on non-scribed test panels.

Subject
Commercial blast cleaning, Test methods, Coating performance, Coatings, Materials, Substrates, Spray coating, Metals, Salt spray corrosion testing, Steel, Corrosion protection, Blistering, Paints
Keywords:
adhesion, atmospheric corrosion, blisters, coatings, alkyd coatings, corrosion prevention, examination, railroads, salt solution, specifications
© 1990 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).
1990
Association for Materials Protection and Performance (AMPP)
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