{"product_id":"casting-flask-rubber-base","title":"Rubber Base for Vacuum Casting Flask – Multiple Sizes Available","description":"\u003cdiv style=\"font-family: inherit; color: inherit;\"\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003ePair your compatible jewelry casting flask with a matching black rubber base. This circular component features a raised central section and center opening for use with compatible perforated casting flasks and flanged vacuum casting flasks.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eWhen replacing a worn base or preparing a matching flask assembly, fit comes first. Listed size options range from 1.2 to 8.6 inches. Check your flask specifications, base dimensions, and equipment requirements before choosing a size.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eKey Features\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eMatching Flask Component\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eA matching or replacement accessory for compatible perforated and flanged casting flask assemblies used in jewelry lost wax casting workflows.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eMultiple Size Options\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eTen listed size designations help you compare options for different flasks. The size designation alone does not establish fit; confirm the actual mating dimensions before ordering.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eBlack Rubber Construction\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eA circular rubber body with a raised center and central opening. Check that the profile matches the flask assembly specified by your equipment manufacturer.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eSuitable Applications\u003c\/h2\u003e\n\u003cul style=\"padding-left: 1.5rem; margin-bottom: 1.5rem; font-size: 16px; line-height: 1.8;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eCompatible perforated casting flask assemblies\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eCompatible flanged vacuum casting flask assemblies\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eReplacement of a matching casting flask rubber base\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eJewelry lost wax casting workshop accessory setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eImportant Function Clarification\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eThis product is a rubber base, not a complete casting flask or vacuum casting machine. It does not melt metal, perform burnout, generate vacuum, or cast metal by itself. Compatibility depends on the flask diameter, base dimensions, flange configuration, and equipment design.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eA temperature rating, vacuum rating, and suitability as a hot-flask sealing gasket have not been confirmed. Do not assume this base is suitable for furnace use or contact with hot flasks. Follow the equipment instructions for the correct stage of use and removal.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; font-size: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eProduct type\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eCasting flask rubber base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eRubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eColor and shape\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eBlack; circular with raised center and central opening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eCompatible equipment\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eCompatible perforated and flanged vacuum casting flasks; verify fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eListed sizes\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003e1.2, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6.3, and 8.6 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"width: 40%; font-weight: 600; padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eActual base dimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 0.6rem 0.9rem; border: 1px solid #e0e0e0; line-height: 1.6;\"\u003eNot confirmed; check outer diameter, raised center, opening, and height before ordering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003ePackage Contents\u003c\/h2\u003e\n\u003cul style=\"padding-left: 1.5rem; margin-bottom: 1.5rem; font-size: 16px; line-height: 1.8;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003e1 × Casting flask rubber base in the selected size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eDisclaimer: The casting flask, vacuum casting machine, investment material, and other accessories are not included unless explicitly stated in the listing. The package does not contain all listed sizes.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eBasic Operating Steps\u003c\/h2\u003e\n\u003col style=\"padding-left: 1.5rem; margin-bottom: 1.5rem; font-size: 16px; line-height: 1.8;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eIdentify your flask model and its specified rubber base.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eCompare the flask's nominal size and actual mating dimensions with the required base.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eInspect the base for damage or deformation.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eAssemble the base and cool flask according to the manufacturer's instructions.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eCheck that the components seat correctly without forcing the fit.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eFollow the equipment instructions for use and removal before any incompatible high-temperature stage.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eSafety Information\u003c\/h2\u003e\n\u003cul style=\"padding-left: 1.5rem; margin-bottom: 1.5rem; font-size: 16px; line-height: 1.8;\"\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eConfirm flask and equipment compatibility before use.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eDo not use an incorrectly sized, cracked, or deformed base.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eKeep away from molten metal, hot flasks, direct flame, and excessive heat.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eDo not use as a rated high-temperature or vacuum sealing component without confirmed suitability.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 0.5rem;\"\u003eFollow the equipment manufacturer's assembly and operating instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eHow do I choose the correct size?\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eCheck your flask size, actual mating dimensions, and equipment requirements. The listed inch designation alone does not guarantee fit.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eWill it fit every vacuum casting flask?\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eNo universal fit is claimed. Use it only with compatible perforated or flanged flasks whose dimensions and assembly requirements match.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eCan the base remain attached during burnout?\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eFurnace use and a temperature rating have not been confirmed. Do not assume the rubber base can remain attached during burnout. Follow the equipment instructions for removal.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eDoes the package include a casting flask?\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eNo. This listing supplies one rubber base in the selected size, not a flask or casting machine.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 20px; font-weight: 600; margin-top: 2rem; margin-bottom: 0.75rem; line-height: 1.4;\"\u003eSupport\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; margin-bottom: 1.25rem;\"\u003eFor product questions, compatibility assistance, or order support, contact the Tooltos team at \u003ca href=\"mailto:sales@tooltos.com\" style=\"color: inherit; text-decoration: underline;\"\u003esales@tooltos.com\u003c\/a\u003e. We respond during business days within 24 hours.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Tooltos","offers":[{"title":"1.2 Inch","offer_id":67818291265835,"sku":"JHJMGL059","price":9.99,"currency_code":"USD","in_stock":true},{"title":"1.5 Inch","offer_id":67818291298603,"sku":"JHJMGL060","price":9.99,"currency_code":"USD","in_stock":true},{"title":"2 Inch","offer_id":67818291331371,"sku":"JHJMGL061","price":10.99,"currency_code":"USD","in_stock":true},{"title":"2.5 Inch","offer_id":67818291364139,"sku":"JHJMGL013","price":12.99,"currency_code":"USD","in_stock":true},{"title":"3 Inch","offer_id":67818291396907,"sku":"JHJMGL014","price":13.99,"currency_code":"USD","in_stock":true},{"title":"3.5 Inch","offer_id":67818291429675,"sku":"JHJMGL028","price":11.99,"currency_code":"USD","in_stock":true},{"title":"4 Inch","offer_id":67818291462443,"sku":"JHJMGL029","price":13.99,"currency_code":"USD","in_stock":true},{"title":"5 Inch","offer_id":67818291495211,"sku":"JHJMGL030","price":16.99,"currency_code":"USD","in_stock":true},{"title":"6.3 Inch","offer_id":67818291527979,"sku":"JHJMGL034","price":22.99,"currency_code":"USD","in_stock":true},{"title":"8.6 Inch","offer_id":67818291560747,"sku":"JHJMGL041","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/2140\/4459\/files\/rubber-base-pad.webp?v=1792484118","url":"https:\/\/www.tooltos.com\/products\/casting-flask-rubber-base","provider":"Tooltos Jewelry Tools","version":"1.0","type":"link"}