{"product_id":"sterilite™-de-ox-sterling-silver-casting-grain","title":"Sterilite™ De-Ox Sterling Silver Casting Grain","description":"\u003cp\u003eSave polishing time and get superior tarnish resistance with Sterilite™ De-Ox sterling silver casting grain.  \n\nThe tight grain structure delivers a smooth cast surface, reducing polishing time. The resulting bright white metal resists tarnish six times better than regular sterling silver. Your casts will stay bright for a long time, without the need for rhodium plating. \n\nCast items have a Vickers hardness of 80 (heat-treating increases this hardness to 97). \n\nApplications \nAny casting method. \n\nCasting and Cleaning \nIn general, your casting temperature should be 100˚F (37.7˚C) above the liquidus point (somewhat hotter if the castings are intricate). Use a small amount of high-quality flux when melting with an open flame. We recommend Matt’s Casting Flux™. For further cleaning, mechanical means are recommended.  \n\nRe-Using \nIf you plan to re-use sterling silver castings, remove the copper oxides from the surface in a pickling solution or by mechanical means. We recommend a minimum 1:1 ratio of new grain to used silver. All re-used silver should be clean and free of debris. \n\nComposition \nThe copper used in alloying our sterling silver is 99.9% pure and oxygen-free. Each batch of casting grain is assayed to ensure product that contains 92.5% silver. \n\nAll ingredients are kept in an oxygen-reduced atmosphere during the melting and pouring process to ensure optimum deoxidation.\u003c\/p\u003e","brand":"Sterilite","offers":[{"title":"Default Title","offer_id":50666543907162,"sku":"100806","price":106.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7897\/7882\/files\/100806_702741.jpg?v=1763071316","url":"https:\/\/www.amadesa.com\/products\/sterilite%e2%84%a2-de-ox-sterling-silver-casting-grain","provider":"Amadesa","version":"1.0","type":"link"}