In response to growing market demand, polymeric technology company Belzona now offers a leading-edge repair and protection solution. Optimized to be easy-to-apply, fast-curing and hard-wearing, the combination of Belzona 5711 and Belzona 5721 is specially designed to fortify wind turbine blades with outstanding protection against leading-edge erosion for the long term.
From 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- effectivesolution 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 specially designed to be applied in conjunction with the Belzona 5721 protective coating (amongst other product options). This solvent-free, two-part repair paste is specially formulated for the in-situ repair and rebuilding of leading-edge erosion and impact damage on wind turbine blades.
“Whilst offering rapid cure, Belzona 5711 also has a good working life which allows for the material to be perfectly contoured/formed to the leading edge of the blade. This removes the need for sanding, therefore, eliminating a step in the repair process and simplifying the application,” said Jason Horn, Research and Development Manager. “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.”
He concluded: “With the combination of Belzona 5711 and Belzona 5721, the balance between usability and rapid return-to-service makes the products ideal for in-situ repair across a broad application temperature range. The long shelf-life also makes Belzona an ideal stocking material for wind turbine maintenance.”
Key Benefits of New Belzona Leading-Edge Repair Product
60-minute cure time in ambient temperatures ensures rapid return-to-service
Product is suitable for all climates (5-40°C / 41-104°F) with a maximum overcoat window of 24 hours
Cartridge packaging ensures good mixing quality and ease of use
Easy to contour and long working-life ensures a smooth finish
Reduced health and safety risks (CMR free labelling in EU)
Durable technology provides a long-lasting repair
Sanding is not required prior to overcoating with Belzona 5721, thus speeding up the application process
Single component rather than two grades for all climates
Three-year shelf life allows for flexibility in application planning
Higher volume per cartridge ensures reduced packaging waste
Can be applied either at offshore or onshore wind farms
Can be used to repair manufacturing defects
In addition, Belzona 5711 is available worldwide through the network of Belzona international distributors. In order to ensure that the product is applied correctly, contractors can be trained in the application of Belzona 5711 locally on site by one of the local distributors.
News item from Belzona
Filed Under: News
Disclosure: We are participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
If you continue to use this site we will assume that you are happy with it.