{"product_id":"zinc-aluminum-sacrificial-anode-5-pack","title":"High-Purity Zinc Aluminum Alloy Sacrificial Anode – 5-Pack, 80×30×12mm for Marine \u0026 Industrial Protection","description":"\u003cstyle\u003e\n  \/* ==================== 产品描述样式 - 前缀 gbs-zinc-anode 避免全局污染 ==================== *\/\n  .gbs-zinc-anode {\n    color: #333;\n    line-height: 1.6;\n    font-size: 16px;\n    word-wrap: break-word;\n  }\n  .gbs-zinc-anode h2 {\n    margin: 30px 0 14px;\n    font-size: 1.3rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    border-bottom: 2px solid #f0f0f0;\n    padding-bottom: 8px;\n  }\n  .gbs-zinc-anode h3.gbs-faq-question {\n    font-size: 1.05rem;\n    font-weight: 600;\n    color: #1a1a1a;\n    margin: 0 0 6px 0;\n    padding: 0;\n    border: none;\n  }\n  .gbs-zinc-anode p {\n    margin: 0 0 14px;\n  }\n  .gbs-overview-text {\n    font-size: 1rem;\n    background: #f9f9f9;\n    padding: 16px 18px;\n    border-left: 4px solid #2c3e50;\n    border-radius: 4px;\n  }\n  .gbs-highlight-box {\n    background: #eaf2f8;\n    border: 1px solid #aed6f1;\n    padding: 14px 16px;\n    border-radius: 4px;\n    margin: 0 0 18px;\n    font-weight: 500;\n  }\n  .gbs-features-list {\n    list-style: none;\n    padding: 0;\n    margin: 0 0 18px;\n    display: flex;\n    flex-direction: column;\n    gap: 12px;\n  }\n  .gbs-feature-item {\n    display: flex;\n    align-items: flex-start;\n    gap: 10px;\n    padding: 8px 0;\n    border-bottom: 1px dashed #e0e0e0;\n  }\n  .gbs-feature-item::before {\n    content: \"✓\";\n    display: inline-block;\n    color: #2c3e50;\n    font-weight: bold;\n    font-size: 1.1rem;\n    margin-top: 2px;\n    flex-shrink: 0;\n  }\n  .gbs-specs-table-wrapper {\n    overflow-x: auto;\n    margin: 10px 0 20px;\n  }\n  .gbs-specs-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n    min-width: 320px;\n  }\n  .gbs-specs-table td {\n    padding: 10px 14px;\n    border: 1px solid #ddd;\n    vertical-align: top;\n  }\n  .gbs-specs-table td:first-child {\n    background-color: #f7f7f7;\n    font-weight: 600;\n    width: 40%;\n    white-space: nowrap;\n  }\n  .gbs-faq-item {\n    margin-bottom: 18px;\n    padding: 10px 14px;\n    background: #fdfdfd;\n    border: 1px solid #eee;\n    border-radius: 4px;\n  }\n  .gbs-faq-answer {\n    color: #555;\n    margin-bottom: 0;\n  }\n  @media (max-width: 600px) {\n    .gbs-zinc-anode {\n      font-size: 15px;\n    }\n    .gbs-zinc-anode h2 {\n      font-size: 1.2rem;\n      margin-top: 24px;\n    }\n    .gbs-zinc-anode h3.gbs-faq-question {\n      font-size: 1rem;\n    }\n    .gbs-overview-text {\n      padding: 12px 14px;\n    }\n    .gbs-specs-table td {\n      padding: 8px 10px;\n      font-size: 0.9rem;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"gbs-zinc-anode\"\u003e\n\u003ch2\u003e📦 High-Purity Zinc Aluminum Alloy Sacrificial Anode – 5-Pack, 80×30×12mm for Marine \u0026amp; Industrial Corrosion Protection\u003c\/h2\u003e\n\u003cp class=\"gbs-overview-text\"\u003eStop gambling with rough, low-purity anodes that dissolve unevenly and leave your boat's metalwork exposed. This 5-piece pack of precision-cast zinc-aluminium alloy anodes, manufactured to a 99.99% zinc purity standard, delivers reliable cathodic protection for steel hulls, propeller shafts, rudders, and dock structures. Each block measures 80 mm long, 30 mm wide, and 12 mm thick, providing substantial sacrificial mass. The smooth, uniform surface indicates a clean pour with minimal impurities—unlike cheaper blocks that pit and crumble prematurely. Sold in a convenient 5-pack, you'll have enough anodes to cover multiple mounting locations or several scheduled replacements, saving you time and shipping costs. Choose between the weld-on style for direct hull attachment or the bolt-on version with pre-drilled mounting holes—specify your required hole spacing when ordering. Ideal for saltwater boats, freshwater vessels, cooling towers, underground pipelines, and any submerged steel structure.\u003c\/p\u003e\n\u003cdiv class=\"gbs-highlight-box\"\u003e🔬 \u003cstrong\u003e99.99% Zinc Purity – Grade 0# Zinc, 5 Anodes Per Pack:\u003c\/strong\u003e Total pack weight approximately 0.97 kg.\u003c\/div\u003e\n\u003ch2\u003e✨ Key Features of 5-Pack High-Purity Zinc Anodes\u003c\/h2\u003e\n\u003cul class=\"gbs-features-list\"\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003e99.99% Pure Zinc (Grade 0#):\u003c\/strong\u003e Sourced from Ningbo, Zhejiang, this ultra-pure zinc ingot minimises harmful impurities that cause uneven consumption and surface cracking.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eZinc-Aluminium Alloy Formulation:\u003c\/strong\u003e The addition of aluminium enhances electrochemical performance in both seawater and freshwater environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eValue 5-Pack:\u003c\/strong\u003e Five anodes per pack provide enough sacrificial mass for multiple mounting points, annual service spares, or larger structures.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eTwo Mounting Styles Available:\u003c\/strong\u003e Choose weld-on for direct hull or structure attachment, or bolt-on with pre-drilled holes (specify hole spacing and diameter when ordering).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eSmooth, Dense Casting:\u003c\/strong\u003e A fine-grained surface free from porosity and slag inclusions indicates a controlled pour that wears evenly and lasts longer.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"gbs-feature-item\"\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Industrial \u0026amp; Marine Use:\u003c\/strong\u003e Suitable for boat hulls, prop shafts, rudders, dock pilings, cooling systems, underground pipes, and storage tanks.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📏 Specifications – Zinc Aluminum Sacrificial Anode Pack\u003c\/h2\u003e\n\u003cdiv class=\"gbs-specs-table-wrapper\"\u003e\n\u003ctable class=\"gbs-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eZinc-Aluminium Alloy (Grade 0# Zinc, 99.99% purity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Anode Dimensions\u003c\/td\u003e\n\u003ctd\u003e80 × 30 × 12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. Total Pack Weight\u003c\/td\u003e\n\u003ctd\u003e0.97 kg (weld-on) \/ 0.96 kg (bolt-on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eWeld-on (flat back) or Bolt-on (pre-drilled holes – specify hole spacing \u0026amp; diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCathodic protection for steel structures in seawater \u0026amp; freshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable Environments\u003c\/td\u003e\n\u003ctd\u003eSaltwater, brackish water, freshwater, underground, and cooling towers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003e5 × zinc-aluminium sacrificial anodes (select weld-on or bolt-on style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions – Zinc Aluminum Anode\u003c\/h2\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: What is the difference between this zinc-aluminium alloy and a standard zinc anode?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Standard zinc anodes sometimes use recycled or lower-grade material that contains impurities like iron, which can cause the anode to develop a passive oxide film and stop working. This 99.99% pure zinc-aluminium alloy maintains active, predictable corrosion performance, especially in both seawater and freshwater, where regular zinc can struggle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Which mounting style should I choose – weld-on or bolt-on?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Choose weld-on for permanent attachment directly to steel hulls, rudders, or large structures where you have welding access. Choose bolt-on for removable installations on propeller shafts, through-hull fittings, or locations where periodic replacement requires unbolting. For bolt-on orders, please provide your required hole spacing and bolt diameter in the order notes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: How do I properly prepare the mounting surface before installing?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Clean the steel surface to bright bare metal using a wire brush or grinder. Remove all paint, rust, and scale. The anode must make direct electrical contact with the structure it's protecting. If bolting, use stainless steel hardware and consider a star washer between the anode and the structure for a positive bite.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: How long will these 5 anodes last on my boat hull?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: At 80×30×12mm each, and with a 5-piece pack, you have a solid supply. In saltwater, inspect every 3-6 months and replace individual anodes once they are roughly half consumed. For trailered boats, the entire pack could last multiple seasons. For continuously docked vessels, one pack can provide over a year of protection depending on water conditions and how many anodes are installed at once.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gbs-faq-item\"\u003e\n\u003ch3 class=\"gbs-faq-question\"\u003eQ: Can I use this anode for freshwater applications like cooling towers?\u003c\/h3\u003e\n\u003cp class=\"gbs-faq-answer\"\u003eA: Yes. The zinc-aluminium alloy composition is effective in both seawater and freshwater. For cooling towers, water treatment tanks, and underground pipelines, the bolt-on version allows straightforward attachment to steel components that would otherwise corrode rapidly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Default Title","offer_id":52262793675026,"sku":"HKTBCLA190001","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/O1CN01nusf2828UHQfKAwgM__1081467935.jpg?v=1778567152","url":"https:\/\/homediyer.com\/products\/zinc-aluminum-sacrificial-anode-5-pack","provider":"HomeDIYer","version":"1.0","type":"link"}