Propeller Blog


Zafer takes on new approach to maintain a clean hull with Intersleek 1100SR


With its calm waters and strategic location at the tip of the Malay peninsula, Singapore has thrived as a trading depot and port where ships can refit and take on fuel, known as bunkering. The locally-owned barges that move from vessel to vessel replenishing them with fuel are vital to the port’s function. However, those […]

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The outcome of MEPC71 explained – Good news for the environment?

It’s rare to see a blockbuster movie these days that doesn’t spend at least some of its time setting up a sequel, reassuring audiences that although the action is over for now, they won’t have to wait long for more. It’s a similar feeling watching the results of MEPC71 (the 71st Marine Environment Protection Committee) […]

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Marine coatings are critical for ice-class LNG carriers

Fifteen ice-class LNG carriers will soon test Arctic coatings under the most challenging conditions that ships of this type have ever faced. The ships, built at Daewoo Shipbuilding & Marine Engineering (DSME) in South Korea, are billed as the world’s largest icebreakers. Deployed on long-term charter to Yamal LNG, they will be among the first […]

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How digital solutions create real savings in the marine industry


At the prestigious Marine trade show Nor-Shipping in Oslo customers were looking this month for anything presented with one of two “D’s” in front of it: ‘Digital’ or ‘Disruptive’ and ideally both. AkzoNobel, with its leading brand International®, is an enthusiastic part of this trend. We launched our ‘Digital Voyage’ concept including four new digital […]

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Propeller performance and coatings


Propeller performance plays an important part in a vessel’s operation. The main causes of propeller deterioration are corrosion, impingement attack, cavitation erosion, and fouling. Corrosion is minimized by constructing propellers of corrosion resistant alloys such as Nikalium and Superston. Impingement attack usually occurs at the leading edge and outer part of the propeller blades. Cavitation […]

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How important are water ballast tanks for ship owners?

Water Ballast Tanks

The condition of the water ballast tanks can affect both the safety and structural integrity of the vessel and also reduce its asset value. Water ballast tanks are an integral part of every ship and although these areas are not revenue earning, they can be critical particularly if steelwork replacement as a result of corrosion […]

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Which is the best fouling control coatings technology? More than 40 years of “big data” gives the answer

Ever since mankind first set sail there has been a need to protect vessels against the natural onslaught of marine biofouling species. Over the centuries an array of solutions have been investigated with varying degrees of success, from cladding ships’ hulls with copper plate to coatings based on exotic chemical concoctions delivered as a lacquer […]

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Predicting the impact of fouling control coatings on ship powering requirements and operational efficiency: Roughness and Fuel Savings

In today’s competitive market, ship owners and operators need clearer guidance on the potential performance benefits of fouling control coatings for their specific vessels to make optimal coating choices. I have outlined the development of models to predict the impact of fouling control coating choices on ship operational efficiency. Ship owners and operators are sometimes […]

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Dataplan Revisited


In 1974, some inspirational scientists, at what was then International Paints (now AkzoNobel’s Marine Coatings Business), set up a database to collect information on the performance of the company’s fouling control coatings.  The database, called Dataplan, was designed with simplicity in mind, and grew unabated for almost 30 years. Dataplan ultimately grew into “big data”; […]

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Coating solutions for LNG carriers

In the recent past, Liquefied Natural Gas (LNG) has been the focus of considerable interest as the important substitution of fuel oil. Growing need for clean energy in a number of regions is fueling this demand further. The only economically viable method of transporting liquefied natural gas over long distances is via LNG carriers. LNG […]

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