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Anti-fouling paint or bottom paint is a specialized coating applied to the hull of a ship or boat to slow the growth of subaquatic organisms that attach to the hull and can affect a vessel's performance and durability. Hull coatings may have other functions in addition to their antifouling properties, such as acting as a barrier against corrosion on metal hulls that will degrade and weaken the metal, or improving the flow of water past the hull of a fishing vessel〔(Are foul-release paints for you? Coating calculator ), National Fisherman〕 or high-performance racing yacht. ==History== In the Age of Sail, sailing vessels suffered severely from the growth of barnacles and weeds on the hull, called "fouling". Thin sheets of copper or Muntz metal were nailed onto the hull in an attempt to prevent marine growth. One famous example of the traditional use of metal sheathing is the clipper ''Cutty Sark'', which is preserved as a museum ship in dry-dock at Greenwich in England. Marine growth affected performance (and profitability) in many ways. *The maximum speed of a ship decreases as its hull becomes fouled with marine growth. *Fouling hampers a ship's ability to sail upwind. *Some marine growth, such as shipworms, would bore into the hull causing severe damage over time. *The ship may transport harmful marine organisms to other areas. The inventor of the anti-fouling paint was Captain Ferdinand Gravert, born in 1847 in Glückstadt (Schleswig-Holstein, now in Germany but then Denmark), who sold his chemical formula in 1913 at Taltal, Chile. Captain Alex Gravert has valuable documentation about this. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Anti-fouling paint」の詳細全文を読む スポンサード リンク
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