{"product_id":"lincoln-electric-331756-lead-free-silver-solder","title":"Lincoln Electric 331756 Lead Free Silver Solder","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LINCOLN ELECTRIC 331756 is a lead free premium silver solder designed for professional plumbing and HVAC brazing applications. Formulated without lead, this solder meets modern potable water safety requirements while delivering strong, reliable joints on copper and copper alloy fittings. It is positioned as a functional equivalent to WS15318 SilvaBrite-style formulations, making it a practical choice for techs sourcing a replacement with comparable performance characteristics. Licensed plumbers and HVAC service professionals are the primary installers of this product in both new construction and repair work.\u003c\/p\u003e\n\u003cp\u003eThis silver solder is suited for sweat-soldering copper pipe and fittings in residential and light commercial plumbing systems, including domestic hot and cold water lines, hydronic heating loops, and refrigerant-side copper work where local codes permit soft soldering. Its lead free composition makes it appropriate for use on systems that carry potable water, aligning with NSF and lead free plumbing code requirements in most jurisdictions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLead free formulation meets potable water safety standards\u003c\/li\u003e\n  \u003cli\u003ePremium silver-bearing alloy for strong, clean joints on copper and copper alloys\u003c\/li\u003e\n  \u003cli\u003eEquivalent performance to WS15318 SilvaBrite-style solder products\u003c\/li\u003e\n  \u003cli\u003eSuitable for plumbing, HVAC, and light refrigeration copper work\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and functional equivalent to WS15318 SilvaBrite formulations for use in copper and copper alloy soldering applications in plumbing and HVAC systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local plumbing codes, including IPC and IFGC requirements. Shut off and drain the affected water or fluid system before applying heat to any joint. Use an appropriate flux rated for lead free solder and ensure proper surface preparation by cleaning and deburring pipe ends before soldering. Avoid overheating joints, as excessive temperature can burn off flux and compromise joint integrity.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Content\u003c\/strong\u003e: Lead free\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlloy Type\u003c\/strong\u003e: Premium silver-bearing solder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEquivalent To\u003c\/strong\u003e: WS15318 SilvaBrite\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LINCOLN ELECTRIC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 331756\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LINCOLN ELECTRIC","offers":[{"title":"Default Title","offer_id":51233565049138,"sku":"331756","price":63.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307633280.jpg?v=1780103348","url":"https:\/\/voomisupply.com\/products\/lincoln-electric-331756-lead-free-silver-solder","provider":"Voomi Supply","version":"1.0","type":"link"}