Caldwell Casting/Performance Metals HDDRA Diver's Hull Anode Aluminum 3.5 lbs

Caldwell Casting/Performance Metals

<h3>About Performance Metals / Caldwell Casting</h3><p>Performance Metals — operating under the manufacturing banner of <strong>Caldwell Casting Co.</strong> in Cambridge, Maryland — is one of North America's most respected names in sacrificial anode technology. Performance Metals Products, which manufactures Navalloy® sacrificial anodes, completed its transition of business operations to Caldwell Casting, based in Cambridge, MD. The result is a vertically integrated operation where every anode is conceived, cast, and assembled under one roof in the USA.</p><h3>A Legacy of Corrosion-Protection Innovation</h3><p>Performance Metals has established a reputation for developing innovative, high-quality products in the corrosion market and is a leading supplier of exclusively aluminum sacrificial anodes. Their flagship material is <strong>Navalloy®</strong>, a proprietary aluminum alloy that sets the standard for recreational and commercial marine protection. Navalloy® anodes are made to the military specification MIL-DTL-24779B(SH) and contain approximately 95% aluminum, 5% zinc, 0.02% indium, and less than 0.3% of other trace elements.</p><p>What truly distinguishes Performance Metals from the competition is a commitment to eliminating guesswork for boaters. Exclusive to Performance Metals, each Wear Indicator Anode has a colored plastic indicator embedded within it that appears on the surface when the anode wears to half its original size — boaters can simply inspect the anode for the dot to easily determine when to replace it. This patented <em>Red Dot</em> wear indicator has become an industry benchmark. Performance Metals' Premium Line of anodes was the winner of the MAATS Innovation Award in 2004.</p><h3>Why Navalloy® Outperforms Traditional Zinc</h3><p>The choice of anode material matters enormously for long-term hull and drivetrain protection. Navalloy® does not pollute — zinc is a toxic metal that pollutes the water. Navalloy® contains only about 5% zinc, while zinc anodes are 99.9% zinc. Environmental agencies have determined that zinc sacrificial anodes are a major cause of pollution in marinas, and in some cases zinc anodes are being banned. Beyond the environmental advantage, Navalloy® anodes are suitable for use in all water types: salt, brackish, and fresh. This versatility makes them an ideal one-solution-fits-all choice for boaters who move between different waterways.</p><h3>Experienced Engineering Behind Every Cast</h3><p>All anodes are cast and assembled on site in Maryland, USA. The team at Caldwell Casting brings years of experience in a wide range of disciplines and industries, with the knowledge and expertise to handle all customer needs — an innovative group of professionals able to tackle any problem and provide cost-effective solutions. Vice President Martin Wigg exemplifies that depth of expertise: educated at Coventry University in the U.K. with a first-class honours Bachelor's degree in Mechanical Engineering and a later MSc, Wigg is a Chartered Production Engineer who began his career at Rolls-Royce's Aero Engine Division in Derby, England, serving an engineering apprenticeship and working as a Research Engineer.</p><h3>Shop Performance Metals Anode Kits</h3><p>Whether you're maintaining a Yamaha outboard, a Mercruiser sterndrive, a Mercury Verado, or a Bennett trim tab system, Performance Metals has a complete solution. Their Anode Kits bundle all required anodes and hardware for your specific engine or drive in one convenient package — complete with multilingual installation instructions. Kits are packaged attractively with printed text in multiple languages including installation instructions, and all anodes are manufactured from Navalloy aluminum alloy made to military specification MIL-DTL-24779.</p>