Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe

GEOMET metal coating for offshore wind receives Germanischer Lloyd and ISO-20340 certificates

By WPED Contributor | April 30, 2014

NOF Metal Coatings

Fasteners coated with GEOBLACK and GEOMET 321 PLUS VLh effective in oceanic and offshore atmosphere.

Since the end of 2013, GEOMET 321 has been used by Siemens Wind Power A/S on fasteners of wind turbine blades. For this application, Siemens Wind Power A/S requires that the coating must be able to exist in a C5-H environment (according to ISO-12944) without corrosion of the substrate material even after a 1,440-hour salt spray test. For this reason, GEOMET 321 is being applied with a thickness of 15 microns.

At the same time, GE Power & Water has approved the zinc flake systems GEOMET and GEOBLACK in its latest standard P14A-AL-0218. Specific requirements such as 1000-hour salt spray resistance (according to ASTM-B117 or ISO-9227) could be met, and mechanical damage tests were convincing.

In addition to these new standards, the systems GEOMET 321 PLUS VLh and GEOMET 500 PLUS XL have been certified by the institute Germanischer Lloyd regarding the corrosion protection of fasteners in oceanic and offshore atmosphere with high salinity levels (C5-M high according to ISO-12944). This means a salt spray resistance from 1,440 to 2,016 hours without appearance of red rust.

NOF Metal Coatings Group is the first to have been certified by two different institutes, which confirms its potential of low thickness corrosion protection for offshore installations.

Aside from the recent certificates by Germanischer Lloyd, the French Corrosion Institute had already certified the technologies GEOMET and DACROMET in 2010 and proved their ability to pass the ISO Norm 20340 standard, which corresponds to level C5-M.

NOF Metal Coatings Group
www.nofmetalcoatings.com


Filed Under: News, Offshore wind
Tagged With: dnv gl, germanischer lloyd, NOFmetalcoatings
 

About The Author

WPED Contributor

If you would like to contribute to Windpower, please contact us: https://www.windpowerengineering.com/meetourteam/

Related Articles Read More >

US government allows Empire Wind offshore project to resume construction
Richardson Electronics to deliver pitch energy modules to TransAlta wind fleets
Equinor halts work on Empire Wind offshore project after federal government order
ARESCA wants input on offshore wind standards

Podcasts

Wind Spotlight: Looking back at a year of Thrive with ZF Wind Power
See More >

Windpower Engineering & Development Digital Edition

Digital Edition

Browse the most current issue of Windpower Engineering & Development and back issues in an easy to use high quality format. Clip, share and download with the leading wind power engineering magazine today.

Windpower Engineering & Development
  • Wind Articles
  • Solar Power World
  • Subscribe to Windpower Engineering
  • About Us/Contact Us

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising

Search Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe