{"product_id":"sterling-silver-anti-firescale-casting-grain","title":"Sterling Silver Anti-Firescale Casting Grain","description":"\u003cp\u003eGet clean castings and save finishing time with this sterling silver anti-firescale grain. It’s a great choice for all types of casting, especially creating items that will be annealed or soldered. \n\nThe sterling silver formulation is approximately 90% as hard as traditional sterling silver, and it can be used with acid-based plating solutions.  \n\nSold by the troy ounce (ozt.). \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":"Amadesa","offers":[{"title":"Default Title","offer_id":50666543546714,"sku":"100804","price":405.95,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7897\/7882\/files\/100804in_448100.jpg?v=1763071295","url":"https:\/\/www.amadesa.com\/pl-pl\/products\/sterling-silver-anti-firescale-casting-grain","provider":"Amadesa","version":"1.0","type":"link"}