New Approach Doubles the Life of OffShore Wind Turbine Seals

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Zeon’s Hydrin® ECO reduces maintenance requirements, costs

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This can play an important role in controlling the high maintenance costs of offshore wind farms.

While offshore wind farms are an important source of the world’s future renewable energy supply, the sea is a hostile environment for wind turbines, wearing down their parts with saltwater and high shaft speeds. The cost and effort to replace these components is high.

That’s why a German parts manufacturer is now using Hydrin® epichlorohydrin elastomers (ECO) in place of nitrile rubber for the seals that secure the turbines’ blades. The company, Otto Haas KG in Nuremberg, Germany, is an innovative business that has produced rubber and plastic parts for more than 60 years, and today creates high-quality seals for the wind industry.

“Imagine the difficulty of replacing the seals on hundreds of turbines that are situated ten kilometers offshore; By using Hydrin rather than an NBR, we are able to double the life expectancy and increase the performance of the turbines’ seals,” says Thomas Haas, the managing director of Otto Haas. “This can play an important role in controlling the high maintenance costs of offshore wind farms.”

About Hydrin ECO Elastomers

Long used in the automotive industry, and an excellent choice for industrial parts, Hydrin elastomers offer many of the same dynamic properties of natural rubbers, as well as many of the same desirable characteristics of nitrile and polychloroprene rubber. With good resistance to heat, hydrocarbons and low temperatures, Hydrin ECOs provide a good balance of properties not found in other thermoset materials.

Replacing NBRs with Hydrin can enable wind turbine producers to install superior parts for turbines that require less maintenance.

The benefits of offshore turbines

Locating turbines offshore makes them less obtrusive to residents, and the average wind speed and capacity is usually much higher than that produced by land-based turbines. Yet the cost of maintaining offshore turbines is sharply higher. Using Hydrin seals – which last twice as long as NBR seals in off-shore environments – reduces the number of needed replacements by half.

For more information about Hydrin and how Zeon Chemicals is providing technical expertise for all industrial elastomer needs, please contact Clark Cable at 502.775-7785 or For more information on Zeon Chemicals L.P., visit More details about Otto Haas KG are available online at

About Zeon Chemicals L.P.
Zeon Chemicals L.P. is a wholly owned subsidiary of ZEON Corporation of Tokyo, Japan, a world leader in specialty elastomers, polymers and specialty chemicals. ZEON Corporation is one of the top producers of polymers in the world with plants in Asia, North America and Europe, and Research and Development laboratories in Kawasaki (Japan), Louisville (KY, USA) and Barry (UK).

ZEON Corporation, with combined sales of over US 2.8 billion, utilizes its expertise and basic position in C4 and C5 chemistry to offer a wide range of products. The company employs approximately 3,200 people worldwide.

About Otto Haas KG
With more than 60 years’ experience creating rubber and plastic parts, Otto Haas KG is an important partner to a wide range of industries. With extensive in-house production and tool development capabilities, the manufacturer is a leader in developing innovative, flexible solutions for businesses all over the world.


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Holly Rudolph
Power Creative
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Clark Cable
Zeon Chemicals
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