{"product_id":"ransom-randolph-sc-x-casting-investment-100lb","title":"Ransom \u0026 Randolph SC-X Investment-100 Lb","description":"\u003cp\u003eRansom \u0026amp; Randolph SC-X Investment is a professional-grade casting investment formulated for jewelry and fine art lost-wax casting. Based on the SC20 formula, SC-X contains a higher percentage of cristobalite, making it especially well-suited for casting white gold as well as other gold alloys, silver, and metal alloys. Composed primarily of powdered silica (quartz), cristobalite, and a gypsum (calcium sulfate) binder, SC-X is mixed on-site with water by the user prior to use to form precision casting molds.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBased on the SC20 formula with a higher cristobalite content — optimized for white gold casting\u003c\/li\u003e\n\u003cli\u003eHigh compressive strength and low thermal expansion for dimensional accuracy\u003c\/li\u003e\n\u003cli\u003eWithstands rapid and high-temperature burnouts without cracking\u003c\/li\u003e\n\u003cli\u003eProduces smooth, lustrous surface quality with high detail reproduction\u003c\/li\u003e\n\u003cli\u003eSuitable for casting gold, silver, and other metal alloys in lost-wax applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFormula Base\u003c\/th\u003e\n\u003ctd\u003eSC20 with elevated cristobalite content\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Composition\u003c\/th\u003e\n\u003ctd\u003ePowdered silica (quartz), cristobalite, gypsum (calcium sulfate) binder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Mixing Ratio\u003c\/th\u003e\n\u003ctd\u003e38–40 mL water per 100 g powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Use\u003c\/th\u003e\n\u003ctd\u003eLost-wax casting of jewelry and fine art pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest Suited For\u003c\/th\u003e\n\u003ctd\u003eWhite gold; also suitable for yellow gold, silver, and other metal alloys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackage Size\u003c\/th\u003e\n\u003ctd\u003e100 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProp 65 Warning\u003c\/th\u003e\n\u003ctd\u003eContains crystalline silica — see Notes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProp 65 Warning:\u003c\/strong\u003e This product contains crystalline silica, a substance known to the State of California to cause cancer. Always use appropriate respiratory protection and follow safe handling procedures when mixing or working with this investment powder.\u003c\/p\u003e","brand":"Ransom \u0026 Randolph","offers":[{"title":"Default Title","offer_id":43584908755158,"sku":"121.735","price":189.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/ransom-and-randolph-sc-x-investment-100-lb-otto-frei.jpg?v=1719955806","url":"https:\/\/www.ottofrei.com\/products\/ransom-randolph-sc-x-casting-investment-100lb","provider":"Otto Frei","version":"1.0","type":"link"}