{"product_id":"castaldo-quick-sil-rtv-silicone-molding-putty-100g","title":"Castaldo Quick-Sil RTV Mold Rubber-100 Gram Kit","description":"\u003cp\u003eCastaldo Quick-Sil® is a two-part room temperature vulcanizing (RTV) silicone molding putty that produces tough, strong, and long-lasting production jewelry molds for lost wax casting with 0% shrinkage. Safe, non-hazardous, and odor-free, Quick-Sil® requires no special equipment — just mix equal parts by hand and cure at room temperature in minutes. Perfect for rapid mold making without a vacuum or vulcanizer.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEasy to use — mix by hand, no vacuum or precise measuring required.\u003c\/li\u003e\n\u003cli\u003eFast setting — working time of 1–2 minutes, cures in approximately 15 minutes.\u003c\/li\u003e\n\u003cli\u003eProduces tough, strong molds with 0% shrinkage for high accuracy.\u003c\/li\u003e\n\u003cli\u003eSafe, non-toxic, non-hazardous; no unpleasant fumes or odors.\u003c\/li\u003e\n\u003cli\u003eWorks best when pressed under pressure (vise, clamps, or unheated mold press).\u003c\/li\u003e\n\u003cli\u003eSuitable for lost wax casting and direct casting of low-temperature metals like lead, tin, or pewter.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eKit Size\u003c\/th\u003e\n\u003ctd\u003e100 grams (Part A + Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eTwo-part RTV silicone putty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMix Ratio\u003c\/th\u003e\n\u003ctd\u003e1:1 by hand (approximate — no precision measuring needed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking 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\u003eApprox. 15 minutes at room temperature\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\u003eRecommended Molding Pressure\u003c\/th\u003e\n\u003ctd\u003eApply as much pressure as possible using vise, clamps, or unheated mold press\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eWarm materials to 70–100°F (20–40°C) for best results\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eApplication \u0026amp; Use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eQuickly mix equal parts A and B by hand — do not overmix; a uniform color is not required.\u003c\/li\u003e\n\u003cli\u003eForm the mixture around your model or within a mold frame before the 2-minute working time expires.\u003c\/li\u003e\n\u003cli\u003eClamp or press under pressure to eliminate air bubbles and ensure even curing.\u003c\/li\u003e\n\u003cli\u003eMold cures fully in about 15 minutes and can be used immediately.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIdeal for jewelry prototypes, wax models, and small metal components.\u003c\/li\u003e\n\u003cli\u003eWorks with low-melting alloys such as tin, pewter, and lead.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDo not overmix; overmixing may cause the compound not to cure properly.\u003c\/li\u003e\n\u003cli\u003eWarm cold material to room temperature before mixing.\u003c\/li\u003e\n\u003cli\u003eCold mold frames may lengthen cure time — warm slightly to 90°F (32°C) before use.\u003c\/li\u003e\n\u003cli\u003eResidue after molding is harmless mineral oil; clean with soap and water.\u003c\/li\u003e\n\u003cli\u003eWash mold frames and tools thoroughly when switching between rubber types to prevent surface contamination.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Castaldo","offers":[{"title":"Default Title","offer_id":43582296850646,"sku":"122.613-100","price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/castaldo-quick-sil-rtv-mold-rubber-100-gram-kit-otto-frei.jpg?v=1719957115","url":"https:\/\/www.ottofrei.com\/products\/castaldo-quick-sil-rtv-silicone-molding-putty-100g","provider":"Otto Frei","version":"1.0","type":"link"}