ALODINE EC2 PDF

Volvo Penta, a leading worldwide supplier of engines and complete power systems for marine and industrial use based in Chesapeake, Va. Tim Pennington. The goal of the new Volvo Penta Ocean X was to make the equipment more durable in highly corrosive saltwater environments, and to reduce the weight of the assemblies so the boats can accelerate more rapidly, plane out faster and travel at higher top-end speeds using less fuel. But chromate contains an extremely hazardous, EPA-regulated carcinogen, and requires a complex on-site water treatment facility at Volvo Penta. The redesign presented two dilemmas: how to better protect the stern drive assembly from corrosion, and how to eliminate the dangerous, expensive and environmentally hazardous chromate coating process.

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Volvo Penta, a leading worldwide supplier of engines and complete power systems for marine and industrial use based in Chesapeake, Va. Tim Pennington. The goal of the new Volvo Penta Ocean X was to make the equipment more durable in highly corrosive saltwater environments, and to reduce the weight of the assemblies so the boats can accelerate more rapidly, plane out faster and travel at higher top-end speeds using less fuel.

But chromate contains an extremely hazardous, EPA-regulated carcinogen, and requires a complex on-site water treatment facility at Volvo Penta. The redesign presented two dilemmas: how to better protect the stern drive assembly from corrosion, and how to eliminate the dangerous, expensive and environmentally hazardous chromate coating process. Then came the issue of the manifold redesign. In January, the EPA introduced new emissions regulations requiring catalytic converters to improve exhaust emissions.

Anticipating this deadline, Volvo Penta began to redesign their exhaust manifold in to meet the pending federal requirements. But the addition of a catalytic converter would not only add to the overall size of the engine exhaust system, it would also greatly increase its weight. The exhaust gases must pass through aluminum and rubber components before entering the body of water. To ensure that these components do not melt from exposure to these super-heated gases, seawater passes over the manifold, cooling the exhaust.

As this seawater is highly corrosive, few substrate materials will withstand ongoing exposure. To reduce the weight of the newly-designed, larger engine exhaust system, Volvo Penta engineers wanted to use a lighter substrate material such as aluminum, but were challenged to find a material that could withstand the corrosive seawater and temperature extremes. Designed to work on most light metal surfaces, Alodine EC2 forms a protective layer of titanium dioxide ceramic that resists corrosion, increases wear resistance and reduces surface friction on the finished coated surface.

As aluminum is much less dense than cast iron, Volvo Penta greatly reduced the weight of the exhaust manifold, improving both fuel economy and overall performance. As electroceramic coating technology is compatible with most typical paint finishes such as e-coat, powder and liquid paint systems, this coating process easily accepted the paints used to make the Ocean X stern drive and engine exhaust system more aesthetically pleasing.

Scalera says Alodine EC2 coating is formed through the electro deposition of titanium oxides, providing a tough, flexible coating with exceptional chemical, corrosion, temperature and abrasion resistance. Compared to traditional coating methods, the Alodine EC2 coating process requires fewer steps, allowing for faster process speeds and reduced processing costs, he says. During testing, electroceramic coated parts were scratched and then subjected to salt water immersion and tidal testing.

With EC2, scratched surfaces easily resisted corrosion damage creep, the deepening and widening of the damaged area. Masking is employed in most any metal finishing operation where only a specifically defined area of the surface of a part must be exposed to a process. Conversely, masking may be employed on a surface where treatment is either not required or must be avoided. This article covers the many aspects of masking for metal finishing, including applications, methods and the various types of masking employed.

Tim Pennington Contributor , Products Finishing. Related Topics Electroplating. Blackening of Ferrous Metals The reasons for installing an in-house cold blackening system are many and varied. Pretreatment for Painting. Find a Finishing Supplier. Browse PF by Topic. Subscribe to Products Finishing Magazine. Calculating the Cost of Powder Coating.

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Alodine EC2: ‘All aboard’ for saltwater corrosion resistance

Chem film is a chemical conversion coating primarily used to protect aluminum from corrosion. Specifically the chemical conversion coating when used in the above processes is a chromate conversion process. Chromate conversion coatings are used for heat sinks, automotive wheels, and everyday aluminum hardware and components. In aerospace applications, chromate conversion coatings are used on aircraft hulls, including shock absorbers, side and torsion struts, landing gear, and flight control systems such as rudder systems and wing parts.

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Video Illustrates Revolutionary Electroceramic Coating Processing

Henkel continuously develops innovative products and technologies that offer customers benefits in environmental and health protection, This trust is earned by the continued practice of putting the customer first and working to discover new, more effective solutions every day. With more than 50, employees, Henkel continues to expand its diversified range of products and services. Facilities in over 80 countries help ensure Henkel remains a global market leader. Formed through the electro-deposition of The right coating is critical to the protection of aerospace engine components from the inferno-like conditions under which they must successfully operate. Powerful friction and corrosion protection has never been more convenient.

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What is Alodine / Chem film / Chromate Conversion Coating?

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