We have developed a duplex protection system of saturated polyester powder coating and galvanizing to protect outside telecommunications plants in high-corrosion locations. The important thing in this duplex system is to guarantee the adhesiveness of the coating on the zinc substrate. We have confirmed that the adhesiveness of the coating is significantly improved by applying metal spraying instead of hot-dipped galvanizing. In addition, we applied plastic spraying to the metal-sprayed articles. We obtained a smooth surface of saturated polyester coating using specially developed polyester resin with high fluidity. This coating was confirmed to have good adhesiveness, impact resistance, and scratch strength.

Subject
Films, Zinc rich coatings, Spray coating, Galvanized coatings, Surfaces, Powder coatings, Plastics, Steel, Thermal sprayed zinc coatings, Zinc, Polyester, Impact resistance, Resins
Keywords:
duplex protection system, powder coating, metal spraying, zinc spraying, plastic spraying, saturated polyester
© 1998 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).
1998
Association for Materials Protection and Performance (AMPP)
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