{"product_id":"borax-casting-flux-powder-1lb","title":"Borax Flux-1Lb","description":"\u003cp\u003e\u003cstrong\u003eBorax Casting Flux Powder\u003c\/strong\u003e helps control oxidation during melting and pouring, keeping metal cleaner for better fills and fewer inclusions. Use as a general casting flux or for crucible prep. Sold in a \u003cstrong\u003eone-pound (1 lb)\u003c\/strong\u003e box.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eControls oxidation during melting and casting\u003c\/li\u003e\n\u003cli\u003eKeeps melts cleaner; helps reduce slag and inclusions\u003c\/li\u003e\n\u003cli\u003eSuitable for crucible prep — use alone or mixed with boric acid\u003c\/li\u003e\n\u003cli\u003eEasy to sprinkle or spoon into the melt\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart #\u003c\/th\u003e\n\u003ctd\u003e122.821\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003ePowder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight\u003c\/th\u003e\n\u003ctd\u003e1 lb (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSprinkle a small amount of borax into the crucible before charging metal to help glaze and protect the surface.\u003c\/li\u003e\n\u003cli\u003eAdd a pinch to the melt as needed to maintain a clean, glassy cover while heating.\u003c\/li\u003e\n\u003cli\u003eFor crucible conditioning, coat the hot crucible interior with a light layer of borax and rotate to distribute.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMelting and pouring ingots\u003c\/li\u003e\n\u003cli\u003eGeneral casting operations\u003c\/li\u003e\n\u003cli\u003eCrucible preparation and maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBorax vs. Boric Acid:\u003c\/strong\u003e They are two different formulations related to boron chemistry. Borax is a naturally occurring mineral used here as a casting flux; boric acid is a refined derivative. Both can be used during melting to help clean metal and may be mixed for certain shop practices, including crucible prep.\u003c\/p\u003e\n\u003cp\u003eUse appropriate PPE — gloves, eye protection, and fume management — when melting and pouring. Avoid inhalation of dust; keep container closed when not in use. Follow your foundry and crucible manufacturer's recommendations.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43579615838422,"sku":"122.821","price":6.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/borax-flux-1lb-otto-frei.jpg?v=1719958555","url":"https:\/\/www.ottofrei.com\/products\/borax-casting-flux-powder-1lb","provider":"Otto Frei","version":"1.0","type":"link"}