Historically the chemistry of polyurethanes is not new -- it has been around almost half a century. And, during the past 20 years the growth of these coatings in the U.S. has been slow. Early demands were aimed at satisfying the need for floor finishes. This led to the development of moisture cured aromatic formulations. While they were highly successful for interior use, initial resin compositions had shortcomings when used as exterior finishes, such as yellowing and early chalking.
© 1978 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).
1978
Association for Materials Protection and Performance (AMPP)
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