Joint SNAME/ASNE Meeting Hears Report On SPC Coating

The annual Joint Meeting of The Society of Naval Architects and Marine Engineers, Northern California Section, and the American Society of Naval Engineers, Golden Gate Section, was held recently at the Fleet Admiral Nimitz Club, Treasure Island Naval Station, Calif. A paper titled, "Evaluation of SPC Underwater Coating on a Modern Containership," was presented by Peter A. Fisher of Matson Navigation Company, and Grant C. Johnson of International Paint Company (Calif.), Inc.

Hull surface roughness, biological fouling, effect of roughness on propulsion power, and characteristics of self polishing copolymer (SPC) coatings that help prevent fouling and limit increase of roughness over the life of the ship, were discussed in the first part of the paper.

The second part dealt with a trial application of an SPC coating, supplied by the International Paint Company, on the Matson Navigation containership Maui.

The performance of this ship was compared over a two-year period with performance of the Manulani, a very similar containership operated on the same route but coated with a conventional antifouling system. The paper concluded that, in spite of its much higher cost, the SPC system appeared cost effective because performance degradation (in terms of fuel consumption increase as a function of time since last drydocking) was much less with the SPC system than with the conventional antifouling system.

Maritime Reporter Magazine, page 20, Jan 15, 1981

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First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.