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Martyr Anodes CMPSMDXBT Maddox Low Voltage Sacrificial Anode Button

Manufacturer

Martyr Anodes

<h3>About Martyr Anodes</h3><p>When it comes to defending a vessel against galvanic corrosion, few names carry the authority of <strong>Martyr Anodes</strong>. A flagship brand within the <strong>CMP Group</strong>, Martyr has its roots in foundry operations that date back to the early 1900s in Vancouver, BC, growing from a local manufacturer into a globally recognized leader in marine cathodic protection. Today, the brand supplies boaters, commercial operators, and marine professionals worldwide with sacrificial anodes engineered to guard hulls, propellers, rudders, shafts, engines, and other submerged components from the relentless effects of corrosion.</p><h3>Three Alloys, Every Water Type</h3><p>What sets Martyr apart from competing anode manufacturers is its position as the only brand to offer all three protective alloys — zinc, aluminum, and magnesium — under a single product line. This matters because the correct alloy depends entirely on the water environment a vessel operates in. Zinc anodes are the classic choice for aggressive saltwater conditions, while aluminum anodes are preferred for saltwater and brackish environments, offering superior corrosion resistance with a reduced environmental footprint. Magnesium anodes are the go-to solution for freshwater use, delivering effective sacrificial protection without degrading too quickly. Whatever the operating environment, Martyr has an engineered solution to match.</p><h3>Military-Grade Manufacturing Standards</h3><p>Martyr does not cut corners on metallurgy. Every anode is pressure die-cast and manufactured to meet or exceed <strong>U.S. Military alloy specifications</strong>, using only high-purity metals. Each alloy batch is lab-tested with full certification and traceability available upon request. This rigorous quality management — operating under an ISO 9001 framework — ensures that each anode delivers consistent, long-lasting galvanic performance across a wide range of marine environments, from recreational pleasure craft to commercial vessels and naval applications.</p><h3>Anode Kits for Simplified Protection</h3><p>For boaters who want a complete, hassle-free maintenance solution, Martyr&rsquo;s <a href="/7452-martyr-anodes-anode-kits-200102">Anode Kits</a> offer pre-packaged sets engineered for specific engine models and boat types. Compatible with major marine engine brands including Yamaha, Mercury, Volvo, and MerCruiser, these kits take the guesswork out of corrosion protection and ensure every critical system receives optimal coverage in a single purchase.</p><h3>Sustainability at the Core</h3><p>Martyr and the CMP Group have made environmental stewardship a cornerstone of their mission. Traditional zinc anodes can contain cadmium, a metal that poses risks to aquatic ecosystems. Martyr actively advocates for the adoption of aluminum and magnesium alternatives that deliver equal or superior protection while minimizing harm to marine environments — embodying the brand&rsquo;s philosophy of &ldquo;Protect your boat, protect our waters.&rdquo; With over 1,000 anode types available and a catalog that fits virtually every major marine engine and boat model, Martyr remains one of the most comprehensive and trusted sources for marine corrosion protection in the world.</p>

Part Number

CMPSMDXBT
06/01/2036 10:03 AM
Sale Price

$18.32

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Product Details

The Martyr Anodes CMPSMDXBT Maddox Button Anode is a specialized low-voltage sacrificial anode engineered specifically to protect bronze and stainless steel components on composite and wooden vessels. Unlike traditional zinc or aluminum anodes, the Maddox anode creates a more efficient pathway for cathodic protection by generating optimal galvanic currents that prevent overprotection issues.

Key Features:

  • Low-voltage design ideal for fiberglass and wood hull vessels
  • Effectively protects bronze and stainless steel parts from galvanic corrosion
  • Reduces overprotection problems common with higher voltage anodes
  • Improves coating performance and minimizes marine growth
  • Cadmium-free, environmentally friendly construction
  • Compact button design for rudders, trim tabs, struts, and hull mounting
  • Creates a more neutral environment around protected metals

The button-style design makes this anode perfect for applications where space is limited or a low-profile installation is required. By maintaining proper galvanic balance, the Maddox anode helps preserve protective coatings and reduces the risk of alkaline degradation on wooden boats, ensuring long-term vessel protection in marine environments.

The website was very easy to use and had the prop I was looking for.

No reply to my email with question about the part fitting my vehicle. Since the mfg part # matched I took a chance and ordered.

So far so good. Let you know in 2 days.

Great price with free shipping

Easy to navigate and had exactly what I wanted

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