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32Maritime Reporter & Engineering News mechanically very strong coating with routine in-water cleaning. Properly ap- plied and maintained, the coating will notdegrade over time, does not need any major repair for the entire life of the ves- sel and in fact becomes smoother with properly done in-water cleaning. When it is applied correctly and used properly, with cleaning carried out often enough, itwill offer fuel savings of 10-20% com- pared to conventional systems, over the life of the ship. The actual figures will de- pend on the sailing pattern of the ship. A major cruise line which uses Ecospeed onall of its cruise ships, including two very recent newbuilds, have publicly stated that the system has given them a 10% savings compared to their previous bio- cidal antifouling system. Luna, HempelHempel offers a fuel consumption guar- antee on our Hempasil X3 fouling releasesolution, that comes in a package whichconsist of the coating, a fuel performancemonitoring system and a fuel consump-tion guarantee. The fuel saving potential of Hempasil X3 has been fully docu-mented by different studies made by ex- ternal companies and ranges as high as10 ? 15%. When it comes to antifoulings Hempel do not offer a fuel saving guar- antees as such, but we offer an antifoul- ing performance contract. The potential fuel savings of Hempel's high solid AF assortment varies from 1,5 to 4,5%. Visser, PPG Vessel fuel performance is influenced by many factors (>20) including hull coat- ings. The challenge today is the ability to accurately measure each factor and we believe that this also requires specific ex- perience and knowledge. Therefore, we have started a co-operation with Green- Steam, a company that specializes in hull performance measurements. Meanwhile,our customers also look into various ways of measuring hull performance and, together, we evaluate the results. The out- come varies depending on the ship?s op- erational conditions, but the feedback provided to us gives reason to feel confi- dent we are on the right track. Fortu- nately, in order to illustrate these types of results, we are allowed to publish some feedback, as per the m/v Pacific Dream and m/v Neptune Lines case studies.Brown, International Paint There?s no doubt that fouling control coatings provide significant fuel and emissions benefits to the global shipping fleet. Quantifying that benefit however has traditionally been viewed as complex and the methodologies open to challenge.At International, we?ve always been very clear on the fuel and emission savings which can be achieved through the use of our products and on the methodology weuse to predict potential savings. Predic- tions are based on our own analysis, in- dependent analysis and on customertestimony. Our Intersmooth SPC copper acrylateand silyl acrylate antifoulings can deliver 4% potential annual fuel savings when comparing with CDP or rosin based an-tifoulings over a 60 month in service pe- riod. This prediction is based on the ?Townsin? methodology combined with over 5,000 vessel drydockings and in- spections for fouling rating combinedwith average hull roughness measure- ments from over 50 vessel outdockings. As verified by the report ?Energy and GHG Emissions Savings Analysis of Flu- oropolymer Foul Release Hull Coating?, by Professor James Corbett?s Energy & Environmental Research Associates, our latest generation of Intersleek fluo-ropolymer foul release coatings can offer ?Intershield 300 demonstrated itsdurability after 15 years in the cargo oil tanks of the Samco Raven (pic-tured). The 301,653 dwt crude oil tanker, underwent her third special survey at Yiu Lian Dockyard in China. The ships superintendent said thatafter 15 years, the coating was invery good condition with the tanktopsin excellent condition with very fewareas of breakdown.? Jim Brown, International Paint ?The IMO is working on a Polar Code and is under pres- sure, quite correctly, to ban the use of biocidal antifoul- ing paint in the polar regions.? Boud Van Rompay, Hydrex MR#7 (26-33):MR Template 7/9/2012 2:22 PM Page 32