The Ady Gil or Earthrace which was formerly named was a composite carbon fibre and kevlar with a non-toxic anti-fouling paint. You can see it on the show whale war's before it was sunk by a Japanese whaling support vessel MV Shōnan Maru 2 collided on January 6, 2010, resulting in loss of the Ady Gil's bow and one injured crew member.
Or you can read about it on wiki.
http://en.wikipedia.org/wiki/MY_Ady_Gil