A Solution to Freshwater Corrosion
Aluminum Anodes Offer Benefits for Freshwater Use

Posted Thursday, June 8, 2006

 
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Using zinc anodes in freshwater can be problematic. An insulating film of zinc hydroxide builds up, rendering the anode inactive. Performance Metals' aluminum anodes remain active in freshwater, providing the correct protection for Mercury and Volvo sterndrives, as well as all kinds of trim tabs, rudders and shafts.

Made from aluminum and indium alloy, Performance Metals anodes last up to 50% longer than zinc at only 40% the weight. They're self-cleaning in freshwater, environmentally friendly and reactivate upon submersion after being exposed to air, such as during haul out.

While magnesium anodes are popular for freshwater use, they overprotect aluminum parts in polluted or saltwater. They also typically last only 20% as long as aluminum anodes. Because they are suitable for all types of water, aluminum anodes are perfect for boats that travel between salt and freshwater.

Performance Metals' exclusive "red dot" wear indicator appears when the anode wears to half its size, indicating it's time for replacement. The company's anodes are manufactured from an ISO 9001: 2000 certified facility and meet military specification MIL-A-24779. They range from $6 to $67.50 for various uses.

Contact Performance Metals, 650 Rt. 100 N., Bechtelsville, PA 19505. 877-612-5213; Fax: 610-367-4759.