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Non-toxic hull coating resists barnacles, may save ship owners millions
Date:5/28/2009

p>Barnacle buildup also forces owners to remove ships from the water and place them on dry docks for cleaning. This expensive procedure costs ships valuable time at sea when they could be making money.

For many years, ship owners fought barnacles by coating their hulls with toxic substances that resisted barnacle buildup. But those substances killed fish and other marine life in harbors, causing governments around the world to ban ships from using them.

That led to increased interest in endowing the ship coatings with wrinkled topographies. The coatings share traits with surfaces found in nature, where rough surfaces such as shark skin generally stay free of debris buildup. In contrast, other marine species, such as whales, have smooth skin but often carry barnacles as unwanted hitchhikers.


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Contact: Nate DeGraff
nate_degraff@ncsu.edu
919-515-3848
North Carolina State University
Source:Eurekalert

Page: 1 2

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