A Hempel plant in Saudi Arabia’s Eastern Province

A Hempel plant in Saudi Arabia’s Eastern Province

New coat for wind towers

Hempel’s latest product is a welcome development for the growing offshore wind energy industry

01 September 2013

Hempel’s recently launched product, the Hempadur 47300, offers offshore wind tower producers a Norsok-approved epoxy mid-coat with one of the fastest curing times in the industry.

The company says Hempadur 47300 is a low-solvent epoxy mid-coat that has been specially formulated for tough offshore conditions. It can be handled just four hours after application – roughly one hour faster than standard equivalent coatings – and this improved drying time promises to help wind tower producers increase production efficiency and reduce costs.

“Curing time is one of the biggest causes of bottlenecks on wind tower production lines,” explains group power segment manager Anders Voldsgaard Clausen. “A 25 per cent reduction in curing time means manufacturers can achieve a much faster production flow. They can coat more towers each shift and use less energy to dry the towers – which helps drive down the total cost of each unit.”

As well as faster curing times, Hempadur 47300 also has a solvent content of just 190 gm per litre. As a result, it releases very little VOC into the atmosphere during application, which is an important consideration for many producers in this industry. It is also approved and certified according to Norsok M-501, system 1, which is often demanded by specifiers when they create specifications.

“Hempadur 47300 has been released at a very good time for us,” says Anders. “The offshore wind energy industry is looking to lower costs in every part of the value chain, including productivity in the tower manufacturing stage, as they strive to bring down the total costs of wind energy production. Many manufacturers are looking for a faster curing solution that has a low solvent content and Norsok approval.”

Hempel has 24 factories, 48 sales offices, three main and seven regional R&D centres, and more than 150 stock points strategically located around the world. Hempel’s plants in the Middle East-Eastern and Western regions are located in Bahrain, Saudi Arabia, Kuwait, Syria, the UAE and Qatar.

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