Site A - Low Erosion Repair/refurbished threshold Site B - High Erosion Repair/refurbished threshold Erosion Severity Illustrative 0 5 10 15 20 25 Turbine age (yrs) 0 5 A Leading Edge Protection approach is dependent on project-specific conditions and asset management strategy. High precipitation, air moisture, salt, dust, or sand are factors that increase the risk of leading edge erosion. 10 15 Turbine age (yrs) Paint coating solution 20 Tape solution 25 Shell solution Application Paint Coating Solution All brands and platforms Tape Solution All brands and platforms Shell Solution Some Vestas and Multibrand platforms* * Dependent on blade geometry. Contact you local Vestas Sales & Service office for platform and turbine specific availability Paint Coating Solution A paint coating solution is recommended for sites with low erosion risk or as a lifetime extension solution for blades with limited remaining operational capacity. It is easily applied, requires little labor and repairs are simple. The coating can be applied uptower by blade technicians via rope access or a blade platform. The polyurethane coating is applied in three layers of 100-125 microns Dry Film Thickness (DFT), usually in different colors to allow for a visual inspection of wear and tear. Tape Solution A tape upgrade solution is suitable for sites with moderate erosion risk and provides a good, even layer of protection while offering resistance to punctures and UV rays. The tape can be applied uptower to the outer third of the blade by skilled service technicians, after thorough blade surface preparation. The tape is applied using an adhesion promoter and an application solution that makes the tape cling to the surface. It is then finished off with an edge sealer. The tape is based on an exceptionally tough polyurethane elastomer material, which has been thoroughly tested to ensure high quality and consistent performance. Shell Solution A shell solution is especially effective as a longer-lasting solution on highly erosion- prone sites and is designed to provide a strong level of erosion protection. With a limited need for continuous repairs, downtime is kept at a minimum and energy production maximized. The shells are mounted using either a pressure sensitive adhesive tape or a liquid adhesive and can be installed by blade technicians via rope access or a blade climbing platform. Blades require limited repairs prior to installation as the shells are applied directly onto the eroded surface. The shells are made of robust elastomeric polyurethane and specifically shaped to fit the aerodynamic profile of a given blade type. Get in touch with us today Visit vestas.com or contact your local Vestas Sales & Service office to get to know more about how Leading Edge Upgrade Solutions can protect your turbine blades and ensure continued high performance. ©Vestas 2021 This document was created by Vestas Wind Systems A/S and contains copyrighted material, trademarks and other proprietary information. All rights reserved. No part of the document may be reproduced or copied in any form or by any means such as graphic, electronic or mechanical, including photocopying, taping or information storage and retrieval systems, without the prior written permission of Vestas Wind Systems A/S. All specifica- tions are for information only and are subject to change without notice. Vestas does not make any representa- tions or extend any warranties, expressed or implied, as to the adequacy or accuracy of this information. Vestas Wind Systems A/S Hedeager 42 . 8200 Aarhus N . Denmark Tlf: +45 9730 0000 . Fax: +45 9730 0001 vestas@vestas.com . vestas.com 05/2021 – EN
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