{"product_id":"eastwood-tinning-butter-lead-body-solder-flux-1-lb-jar-universal","title":"Eastwood Tinning Butter | Universal | Lead Body Solder Flux, 1 lb Jar (31043)","description":"\u003ch2\u003e\u003cb\u003eEastwood Tinning Butter | Lead Body Solder Flux, 1 lb Jar\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eTinning butter is the essential first step in \u003cb\u003elead body soldering\u003c\/b\u003e — without it, solder won't bond to bare steel. Eastwood's tinning butter cleans, etches, and tin-coats the bare metal surface so lead solder flows and bonds correctly. If you're doing lead work on a restoration, this is the jar that makes it work.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal:\u003c\/b\u003e Works on any bare steel panel being prepared for lead body solder — not vehicle-specific.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose Eastwood?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eWashburn's Metal is an \u003cb\u003eauthorized Eastwood dealer\u003c\/b\u003e. Tinning butter is the critical prep step that makes body solder adhere to bare steel.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSolder adhesion:\u003c\/b\u003e Prepares bare steel so lead body solder bonds correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCleans and etches:\u003c\/b\u003e Conditions the surface in one step.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCritical first step:\u003c\/b\u003e Applied before lead solder for proper bonding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit compatible:\u003c\/b\u003e Used with Eastwood lead body solder kits (31124 \/ 31125).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGenerous size:\u003c\/b\u003e 1 lb jar — enough for significant panel work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize:\u003c\/b\u003e 1 lb jar\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 31043\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDo I need this if I'm using lead body solder?\u003c\/b\u003e Yes — tinning butter is mandatory for proper solder adhesion to bare steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoes this work with lead-free solder too?\u003c\/b\u003e Yes — use it before any body solder application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAre you an authorized dealer?\u003c\/b\u003e Yes — Washburn's Metal is an authorized Eastwood dealer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eDoing lead and body work? Browse our \u003ca href=\"\/collections\/restoration-tools\"\u003eRestoration Tools\u003c\/a\u003e and \u003ca href=\"\/collections\/body-panels\"\u003eBody Panels\u003c\/a\u003e for the rest of your bodywork supplies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProp 65 WARNING:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Eastwood","offers":[{"title":"Default Title","offer_id":45074859491443,"sku":"31043","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/318e8161-2411-4667-b208-17a680d034cd.jpg?v=1780807509","url":"https:\/\/shop.washburnsmetal.com\/products\/eastwood-tinning-butter-lead-body-solder-flux-1-lb-jar-universal","provider":"Washburn's Metal","version":"1.0","type":"link"}