News Content
New coatings compete on operational benefits
The results of a recent study by University College London indicate that hull coatings represent the most widely adopted clean technology yesterday. The study, On the attitudes and opportunities of monitoring and measurement and the identification and validation of energy efficiency and performance interventions, was the result of surveying 130 ship owner-operators, shipowners, management companies and charterers, with equal representation from the EU and the Far East. The research found that 86% of respondents have adopted multiple clean technology measures over the last five years, with hull coatings representing 70%, making it the most widely adopted form of 'clean' technology used in the market today.
An ISO standard is now being developed on a transparent and reliable hull and propeller performance specification to assist shipowners in understanding coating manufacturers' claims and measuring the coatings' success. “The key to the success of any common industry hull performance standard will undoubtedly be its independence,” says Michael Hindmarsh, International Paint’s global marketing manager for deep sea dry docking. “An independent, standardised methodology that accounts for multiple forms of clean technology that is developed, not by the technology providers, but a broad cross section of industry stakeholders, particularly end users, would represent a much-needed proposition that would create real trust in the benefits that technology and innovation can bring to energy efficiency within the shipping industry.” An independent standardised methodology would not only deliver greater credibility and objectivity, says Mr Hindmarsh, but also transparency for the shipping industry when it reports and analyses its emissions.
International Paint released two hull coatings in March 2013. Intercept8000 LPP is a new patented biocidal antifouling designed to provide predictability in hull coating performance and Intersleek1100SR is claimed to be the industry’s first patented biocide-free slime release technology. Since their release, Intersleek1100SR has been applied to 102 vessels with 30 contracted and 24 under negotiation across all main classes, including container, cruise, LNG, ro-ro, and tanker vessels. Intercept8000 LPP has been applied to 51 vessels with 15 contracted and a further 41 currently in the pipeline. It has seen significant take-up with container ships.
Nippon Paint released Advanced LF-Sea (A-LF-Sea) in April, and the coating is a development of Nippon Paint’s first-generation low friction antifouling, which has been on the market for over seven years and has been applied to over 850 ships. Achieving propulsion improvements of around 4% with the original coating, Nippon Paint has worked with support from MOL, the Japanese government and ClassNK and now offers a 10% potential fuel saving. Owners are being allowed to try the system on two vessels, with coatings already made on cruise ship, large tankers, car-carriers and bulkers.
The key to the technology is Hydro-Gel. Hydro-Gel is a new so-called 'super-material' that is used in many industrial and medical applications, but only Nippon Paint has patented its use in antifouling paint. Hydro-Gel in the antifouling makes the surface of the hull behave like a liquid on a microscopic level. This behaviour deters the fouling from settling in the first place and significantly reduces hull friction. The new system is included within a reliable and predictable copper-silyl-acrylate self-polishing antifouling paint so that the Hydro-Gel’s effect is renewed and maintained throughout the ship’s service life. The company says that the system does not need to be applied over a fully blasted surface, so can therefore be applied to existing antifouling paints quickly and with minimum cost.
Hempel has released a new hull coating system designed to provide fouling protection during both voyaging and layups, in the one system. “The beauty of the product is that you have a product which enables fuel saving during operation and also extended idle periods of up to 120 days,” says fouling control marketing manager, Claes Skat-Rørdam. “This is the first time that this has been combined in one product, and it is especially suited to today’s market where bulk carriers that can be redirected at short notice or where large container vessels and tankers may wish to increase speed to meet schedules or slow steam to achieve extra fuel savings.”
So far, Hempaguard has been applied to around 50 ships including bulkers, tankers, general cargo vessels, car carriers, cruise ships and ferries. It is available in two formulations - X5 and X7 - for docking intervals of 36 and 90 months respectively. The new, patented technology used in the coating, ActiGuard, has been five years in development and integrates silicone-hydrogel and full diffusion control of biocides in a single coating. Surface retention of the biocide activates the hydrogel to prevent fouling. "Hempaguard releases 95% less biocide than a standard self-polishing co-polymer antifouling," says Mr Skat-Rørdam. The biocide is retained on the surface, thus eliminating the need for polishing.
Only one coat is claimed to be needed, compared to the two or three that are normally necessary for antifouling, and the surface has the same smoothness as conventional biocide-free silicone-based fouling release coatings. The coating also claims good long-term stability and mechanical properties.
If the coating is applied after a full blast, Hempel offers a performance satisfaction guarantee contract for their top product Hempaguard X7. If after four years the shipowner is not satisfied, Hempel will return the vessel back to conventional antifouling at the next drydocking with no questions asked. Mr Skat-Rørdam says: “We are simply saying that if you are in doubt today about whether you should apply a traditional anti-fouling or Hempaguard X7, then we will remove the doubt. We do it because we trust the product.” No monitoring is required as part of the contract. Mr Skat-Rørdam says the company has deliberately steered away from guarantees based on specific measured performance as exactly how measurements should be made is currently the subject of debate in the industry.
Jotun Hull Performance Solutions has launched the HPS Newbuilding Solution at yards delivering vessels with eco-design who want to maximise the energy efficiency at both speed trial and in operation. Based on SeaQuantum X200, it comes with three upgrade components and guarantees. This includes an optimised anticorrosive system where Jotun measures average roughness on the underwater hull surface and offers a money-back guarantee as a part of its Smooth Application Package. An Outfitting Protection Package includes a final coat of the newly developed SeaQuantum X200-S. With this, Jotun guarantees a clean hull at speed trial. Yards can then avoid costly re-dock or under water hull cleaning which is time consuming and may increase hull roughness. Finally, there is a 60-month high performance guarantee with cash back if average speed loss exceeds 1.5% over five years.
PPG has introduced a product that can reduce dry dock time. Sigmacover 580 is an epoxy anticorrosive/tiecoat designed for areas that need spot-blast of 40% or less. Because the product functions both as an anticorrosive and as an antifouling tiecoat, it can be overcoated directly with a range of antifoulings and is suitable for use during routine maintenance and repair dry dockings. It is said to offer a practical overcoating window and because it can be applied at temperatures down to 5°C, it offers year-round application potential.
Once a vessel is in dry dock, Sigmacover 580 is applied to pre-blasted areas for spot repair in a single coat at a dry-film thickness of 250 microns. Once this layer is dry, the antifouling paint can then be applied directly over it. By simplifying the underwater hull specification and eliminating the need for a second anticorrosive or tiecoat layer, application time is reduced and productivity is increased, resulting in cost savings of up to 50%. During a standard dry docking, the use of Sigmacover 580 saves the application cost of a second anticorrosive coat. Additionally, savings are made on paint consumption as there is less overlapping, less overspray and less wastage.
Hydrex’s newly released Ecoshield rudder coating provides an impenetrable protective layer that is able to absorb cavitation forces to prevent the damage normally caused by this phenomenon. Ecoshield is guaranteed for 10 years, so with an Ecoshield application no repaint will be needed during drydocking. At most, minor touch-ups will be required. The smoothness attained by the coating also provides optimum hydrodynamic conditions. This allows rudders to operate at maximum efficiency. Ecoshield is suited to other areas prone to cavitation erosion or other damage such as propeller nozzles, thruster tunnels, the bulbous bow or stabilizer fins.
Damen Shiprepair & Conversion has developed a quick docking package for owners aiming to reduce fuel consumption in between the five-year statutory survey period. The first vessel booked under the new concept is the capsize bulker Castillo De Catoira operated by Spanish company Empresa Naviera Elcano.
Under the package, anti-fouling and fresh coatings are applied to improve hull performance, propellers are given a super high polish and the yard fine-tunes the main engine. Damen expects the fuel saving docking which can take as little as a few days to pay for itself within six to eight months depending on the type and size of the vessel.
Source: Motorship
An ISO standard is now being developed on a transparent and reliable hull and propeller performance specification to assist shipowners in understanding coating manufacturers' claims and measuring the coatings' success. “The key to the success of any common industry hull performance standard will undoubtedly be its independence,” says Michael Hindmarsh, International Paint’s global marketing manager for deep sea dry docking. “An independent, standardised methodology that accounts for multiple forms of clean technology that is developed, not by the technology providers, but a broad cross section of industry stakeholders, particularly end users, would represent a much-needed proposition that would create real trust in the benefits that technology and innovation can bring to energy efficiency within the shipping industry.” An independent standardised methodology would not only deliver greater credibility and objectivity, says Mr Hindmarsh, but also transparency for the shipping industry when it reports and analyses its emissions.
International Paint released two hull coatings in March 2013. Intercept8000 LPP is a new patented biocidal antifouling designed to provide predictability in hull coating performance and Intersleek1100SR is claimed to be the industry’s first patented biocide-free slime release technology. Since their release, Intersleek1100SR has been applied to 102 vessels with 30 contracted and 24 under negotiation across all main classes, including container, cruise, LNG, ro-ro, and tanker vessels. Intercept8000 LPP has been applied to 51 vessels with 15 contracted and a further 41 currently in the pipeline. It has seen significant take-up with container ships.
Nippon Paint released Advanced LF-Sea (A-LF-Sea) in April, and the coating is a development of Nippon Paint’s first-generation low friction antifouling, which has been on the market for over seven years and has been applied to over 850 ships. Achieving propulsion improvements of around 4% with the original coating, Nippon Paint has worked with support from MOL, the Japanese government and ClassNK and now offers a 10% potential fuel saving. Owners are being allowed to try the system on two vessels, with coatings already made on cruise ship, large tankers, car-carriers and bulkers.
The key to the technology is Hydro-Gel. Hydro-Gel is a new so-called 'super-material' that is used in many industrial and medical applications, but only Nippon Paint has patented its use in antifouling paint. Hydro-Gel in the antifouling makes the surface of the hull behave like a liquid on a microscopic level. This behaviour deters the fouling from settling in the first place and significantly reduces hull friction. The new system is included within a reliable and predictable copper-silyl-acrylate self-polishing antifouling paint so that the Hydro-Gel’s effect is renewed and maintained throughout the ship’s service life. The company says that the system does not need to be applied over a fully blasted surface, so can therefore be applied to existing antifouling paints quickly and with minimum cost.
Hempel has released a new hull coating system designed to provide fouling protection during both voyaging and layups, in the one system. “The beauty of the product is that you have a product which enables fuel saving during operation and also extended idle periods of up to 120 days,” says fouling control marketing manager, Claes Skat-Rørdam. “This is the first time that this has been combined in one product, and it is especially suited to today’s market where bulk carriers that can be redirected at short notice or where large container vessels and tankers may wish to increase speed to meet schedules or slow steam to achieve extra fuel savings.”
So far, Hempaguard has been applied to around 50 ships including bulkers, tankers, general cargo vessels, car carriers, cruise ships and ferries. It is available in two formulations - X5 and X7 - for docking intervals of 36 and 90 months respectively. The new, patented technology used in the coating, ActiGuard, has been five years in development and integrates silicone-hydrogel and full diffusion control of biocides in a single coating. Surface retention of the biocide activates the hydrogel to prevent fouling. "Hempaguard releases 95% less biocide than a standard self-polishing co-polymer antifouling," says Mr Skat-Rørdam. The biocide is retained on the surface, thus eliminating the need for polishing.
Only one coat is claimed to be needed, compared to the two or three that are normally necessary for antifouling, and the surface has the same smoothness as conventional biocide-free silicone-based fouling release coatings. The coating also claims good long-term stability and mechanical properties.
If the coating is applied after a full blast, Hempel offers a performance satisfaction guarantee contract for their top product Hempaguard X7. If after four years the shipowner is not satisfied, Hempel will return the vessel back to conventional antifouling at the next drydocking with no questions asked. Mr Skat-Rørdam says: “We are simply saying that if you are in doubt today about whether you should apply a traditional anti-fouling or Hempaguard X7, then we will remove the doubt. We do it because we trust the product.” No monitoring is required as part of the contract. Mr Skat-Rørdam says the company has deliberately steered away from guarantees based on specific measured performance as exactly how measurements should be made is currently the subject of debate in the industry.
Jotun Hull Performance Solutions has launched the HPS Newbuilding Solution at yards delivering vessels with eco-design who want to maximise the energy efficiency at both speed trial and in operation. Based on SeaQuantum X200, it comes with three upgrade components and guarantees. This includes an optimised anticorrosive system where Jotun measures average roughness on the underwater hull surface and offers a money-back guarantee as a part of its Smooth Application Package. An Outfitting Protection Package includes a final coat of the newly developed SeaQuantum X200-S. With this, Jotun guarantees a clean hull at speed trial. Yards can then avoid costly re-dock or under water hull cleaning which is time consuming and may increase hull roughness. Finally, there is a 60-month high performance guarantee with cash back if average speed loss exceeds 1.5% over five years.
PPG has introduced a product that can reduce dry dock time. Sigmacover 580 is an epoxy anticorrosive/tiecoat designed for areas that need spot-blast of 40% or less. Because the product functions both as an anticorrosive and as an antifouling tiecoat, it can be overcoated directly with a range of antifoulings and is suitable for use during routine maintenance and repair dry dockings. It is said to offer a practical overcoating window and because it can be applied at temperatures down to 5°C, it offers year-round application potential.
Once a vessel is in dry dock, Sigmacover 580 is applied to pre-blasted areas for spot repair in a single coat at a dry-film thickness of 250 microns. Once this layer is dry, the antifouling paint can then be applied directly over it. By simplifying the underwater hull specification and eliminating the need for a second anticorrosive or tiecoat layer, application time is reduced and productivity is increased, resulting in cost savings of up to 50%. During a standard dry docking, the use of Sigmacover 580 saves the application cost of a second anticorrosive coat. Additionally, savings are made on paint consumption as there is less overlapping, less overspray and less wastage.
Hydrex’s newly released Ecoshield rudder coating provides an impenetrable protective layer that is able to absorb cavitation forces to prevent the damage normally caused by this phenomenon. Ecoshield is guaranteed for 10 years, so with an Ecoshield application no repaint will be needed during drydocking. At most, minor touch-ups will be required. The smoothness attained by the coating also provides optimum hydrodynamic conditions. This allows rudders to operate at maximum efficiency. Ecoshield is suited to other areas prone to cavitation erosion or other damage such as propeller nozzles, thruster tunnels, the bulbous bow or stabilizer fins.
Damen Shiprepair & Conversion has developed a quick docking package for owners aiming to reduce fuel consumption in between the five-year statutory survey period. The first vessel booked under the new concept is the capsize bulker Castillo De Catoira operated by Spanish company Empresa Naviera Elcano.
Under the package, anti-fouling and fresh coatings are applied to improve hull performance, propellers are given a super high polish and the yard fine-tunes the main engine. Damen expects the fuel saving docking which can take as little as a few days to pay for itself within six to eight months depending on the type and size of the vessel.
Source: Motorship
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