{"product_id":"castaldo-quick-sil-rtv-silicone-putty-firm-flexible-2-2lb-kit","title":"Castaldo Quick-Sil Firm \u0026 Flexible Two Part RTV Silicone Putty Mold Rubber-1 Kg (2.2 Lbs.) Kit","description":"\u003cp\u003eCastaldo Quick-Sil Firm \u0026amp; Flexible is a two-part room temperature vulcanizing (RTV) silicone putty that produces tough, strong, long-lasting production jewelry molds for lost wax casting with \u003cstrong\u003e0% shrinkage\u003c\/strong\u003e. Safe, non-hazardous, and non-toxic, it produces no unpleasant fumes or odors — making it a reliable choice for professional studio environments.\u003c\/p\u003e\u003cp\u003eMixing is straightforward: combine equal parts of Part A and Part B by hand. No precise measurement or vacuum equipment is required to achieve optimum results. While no vulcanizing is needed, best results are achieved when the mixed putty is clamped under pressure — such as in a vise or an unheated mold press. Detailed instructions are included with every kit.\u003c\/p\u003e\u003cp\u003eBeyond lost wax casting molds, Castaldo Quick-Sil Firm \u0026amp; Flexible is also suited for \u003cstrong\u003edirect casting of low-temperature metals\u003c\/strong\u003e such as lead, tin, and pewter.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFirm \u0026amp; Flexible is the original Quick-Sil formula. A Soft \u0026amp; Flexible version is also available — see part number 122.6135SOFT.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003eIntended for professional use only by persons familiar with jewelry casting techniques.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwo-part RTV silicone putty — no vulcanizing required\u003c\/li\u003e\n\u003cli\u003e0% shrinkage for accurate, repeatable molds\u003c\/li\u003e\n\u003cli\u003eMix equal parts A and B by hand — no precise measuring or vacuum needed\u003c\/li\u003e\n\u003cli\u003eSafe, non-hazardous, and non-toxic with no fumes or odors\u003c\/li\u003e\n\u003cli\u003eWorks best when clamped under pressure during cure\u003c\/li\u003e\n\u003cli\u003eSuitable for lost wax casting molds and direct casting of low-temperature metals\u003c\/li\u003e\n\u003cli\u003eDetailed instructions included\u003c\/li\u003e\n\u003cli\u003eOriginal Firm \u0026amp; Flexible formula\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFormula\u003c\/th\u003e\n\u003ctd\u003eTwo-part RTV silicone putty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShrinkage\u003c\/th\u003e\n\u003ctd\u003e0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWork Time\u003c\/th\u003e\n\u003ctd\u003e1–2 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCure Time\u003c\/th\u003e\n\u003ctd\u003eApproximately 15 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Size\u003c\/th\u003e\n\u003ctd\u003e2.2 lbs. (1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHazard Rating\u003c\/th\u003e\n\u003ctd\u003eNon-hazardous, non-toxic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIntended Use\u003c\/th\u003e\n\u003ctd\u003eProfessional use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCastaldo Quick-Sil Firm \u0026amp; Flexible Part A and Part B — 2.2 lb. (1 kg) kit\u003c\/li\u003e\n\u003cli\u003eDetailed instructions for use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWork time is 1–2 minutes.\u003c\/strong\u003e Plan your workflow accordingly before mixing. This product is intended for professional use only and should be used exclusively by persons familiar with jewelry casting techniques. For a softer durometer option, see the Soft \u0026amp; Flexible version, part number 122.6135SOFT.\u003c\/p\u003e","brand":"Castaldo","offers":[{"title":"Default Title","offer_id":43579569602774,"sku":"122.613","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/castaldo-quick-sil-firm-and-flexible-two-part-rtv-silicone-putty-mold-rubber-1-kg-2-2-lbs-kit-otto-frei.jpg?v=1719958590","url":"https:\/\/www.ottofrei.com\/products\/castaldo-quick-sil-rtv-silicone-putty-firm-flexible-2-2lb-kit","provider":"Otto Frei","version":"1.0","type":"link"}