The hull coating applied to a vessel should not only protect the integrity of the vessel for as long as possible but also reduce the vessel’s fuel requirements and therefore reduce operating costs
While some vessel segments are currently benefiting from improved rates and market buoyancy, fuel bills are set to soar. We all know that maintaining careful control over operating expenses and enhancing energy efficiencies will continue to be of critical concern for all shipowners and operators. Optimising energy efficiencies requires a unique mix of both operational and maintenance measures to save costs. This includes ensuring that the hull coating applied to a vessel not only protects the integrity of the vessel for as long as possible but can also reduce the vessel’s fuel requirements and therefore reduce operating costs.
Stroke of paint
Fouling on the hull of a vessel can have a significant impact on fuel consumption and related emissions. Fouling increases friction, which causes the vessel to need more power to maintain any given speed. From the moment a vessel hits the water, the fouling process begins. Thus, investing in the right hull coating solution is integral to maximising efficiency and makes sound business sense.
Leading global coatings manufacturer Hempel has over 100 years’ experience in coating technology and coating solutions. Hempel has recently launched a new innovative fouling defence system called Hempaguard MaX. This unique three-coat system not only provides vessels with a smoother hull, but it can also be applied in just three layers, reducing time in drydock by up to two days compared to a conventional silicone system. By reducing the application time required in drydock and with the added fuel savings, the entire cost of the coating could be paid back within three months1.
The Hempaguard MaX coating system achieves a significantly low average hull roughness. The result is a smooth hull which reduces drag and fuel consumption. Its improved fouling protection delivers a guaranteed maximum speed loss2 of 1.2% over five years (according to the ISO 19030).
What sets this coating system apart is that Hempaguard MaX retains its effectiveness in all water temperatures and at all vessel speeds. This facilitates full trading flexibility for ship operators across the world, a significant benefit to any shipowner needing flexibility in their operations. Combined with the exceptional out of dock fuel savings and fast application time,Hempaguard MaX increases efficiency and reduces operational costs.
By using Hempaguard MaX together with SHAPE, Hempel’s System for Hull and Propeller Efficiency, fuel savings can be empirically measured, proven, and documented. A programme of continuous improvement can then be designed for each individual owner and operator, specifically formulated to enhance vessel efficiency, and – consequently – improve their profitability and competitiveness as owners or operators.
Hempaguard MaX at a glance:
1 Based on a VLCC with activity level of 70% and burning low sulphur fuel costing 35% more than standard bunker fuel over a five-year lifecycle. Hempaguard MaX system delivers an annual saving of around US$1.8M compared to a market average antifouling. This equates to a return on investment of three months.
2 Speed loss: If a vessel’s main engine is set at a certain power output, it will propel the ship through the water at a certain speed. Over time, fouling accumulation will increase drag and cause the speed of the ship to reduce even if the main engine power output remains constant. This reduction in speed is termed speed loss.