Aluminum is a widely used structural material and generally has satisfactory corrosion resistance. However, under some conditions, the corrosion of unprotected aluminum is such that protective paints must be used. Naval aircraft operating in marine atmospheres are in this category, and paint systems based on chromate primers are used in this service. These systems have proved quite useful, but problems are still encountered in certain areas, such as at rivets or at scratches, cracks, or other defects in the paint film. It was the purpose of the research described here to determine the mechanisms of corrosion of aluminum under a paint film and its inhibition by chromate primers and to apply this knowledge to the development of improved primers.

Subject
Films, Primers, Materials, Pigments, Hydrogen evolution, Strontium, Oxide formation, Aluminum, Silicates, Corrosion protection, Zinc, Paints, Corrosion inhibitive pigments
© 1969 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).
1969
Association for Materials Protection and Performance (AMPP)
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