Company insight
Extending the lifespan of wind turbine blades
In response to growing market demand, polymeric technology company Belzona now offers a complete leading edge repair and protection solution. Optimised to be easy-to-apply, fast curing and hard wearing, the combination of Belzona 5711 and Belzona 5721 is especially designed to fortify wind turbine blades with outstanding protection against leading edge erosion for the long term.
Polymeric repair and protection systems support a net-zero future for the planet. F
rom Norway to North Dakota, since its launch in October 2019, Belzona’s leading edge protection coating, Belzona 5721, has already been deployed at numerous wind farms worldwide to great success. Lauded as an “extremely fast and cost-effective solution for protecting leading edges” by Jæren Vind Energi AS in Norway, the turbine blade coating provides a quick and straightforward means of protecting leading edges in situ. Now, building on this knowledge and experience in the field, the company has developed Belzona 5711 – a thixotropic paste specifically designed to be applied in conjunction with the Belzona 5721 protective coating (among other product options). This solvent-free, two-part repair paste is especially formulated for the in-situ repair and rebuilding of leading
edge erosion and impact damage on wind turbine blades.
therefore, eliminating a step in the repair process and simplifying the application.”
“Whilst offering rapid cure, Belzona 5711 also has a good working life which allows for the material to be perfectly contoured [or] formed to the leading edge of the blade.”
Jason Horn, research and development manager at Belzona
Repair paste facilitates fast turnaround time Commenting on Belzona’s solution, research and development manager Jason Horn said: “Whilst offering rapid cure, Belzona 5711 also has a good working life which allows for the material to be perfectly contoured [or] formed to the leading edge of the blade. This removes the need for sanding,
World Wind Technology /
www.worldwind-technology.com
He continued: “Belzona 5711 cures quickly and can be directly overcoated with Belzona 5721 in as little as 30 minutes at 20°C/68°F – without the need for any additional preparation. At the same temperature, Belzona 5721 will be fully cured within five hours, allowing the turbine to be returned to service in the same day.”
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