{"product_id":"castaldo-liquacast-long-life-rtv-molding-rubber-1kg-kit","title":"Castaldo LiquaCast Long-Life Jewelry Molding Rubber-1 Kilo Kit","description":"\u003cp\u003eLiquaCast® Long-Life is Castaldo's yellow, 0% shrinkage RTV liquid molding rubber engineered for extended mold life, added strength, added tear resistance, and a firmer feel. The firmer durometer helps maintain delicate detail during wax injection—ideal for thin filigree, fine channels, difficult undercuts, spirals, and CAD-CAM resin or wax patterns.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e0% shrinkage for dimensional consistency of patterns and castings.\u003c\/li\u003e\n\u003cli\u003eFirmer, tougher rubber for durability and tear resistance through repeated use.\u003c\/li\u003e\n\u003cli\u003eLow viscosity for easy measuring, mixing, vacuuming, and pouring.\u003c\/li\u003e\n\u003cli\u003eEasy 1:1 mix ratio by weight or volume—simple, reliable processing.\u003c\/li\u003e\n\u003cli\u003eDesigned to resist softening or degradation when molds are stored properly over time.\u003c\/li\u003e\n\u003cli\u003eCompatible with most CAD-CAM resins and waxes; use a barrier coat if required (see Notes).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal Kit Weight\u003c\/th\u003e\n\u003ctd\u003e2.2 lb (1 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eYellow\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\u003eMix Ratio\u003c\/th\u003e\n\u003ctd\u003e1:1 (Part A : Part B) by weight or volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking Time (Pot Life)\u003c\/th\u003e\n\u003ctd\u003eApprox. 45–60 minutes at 77°F (25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRoom-Temperature Cure\u003c\/th\u003e\n\u003ctd\u003e16–24 hours at 77°F (25°C); longer cure improves mold quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccelerated Cure\u003c\/th\u003e\n\u003ctd\u003e90–120 minutes at 150°F (60–65°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVacuuming\u003c\/th\u003e\n\u003ctd\u003e~5 minutes; expect temporary rise and collapse of 300–400% during degassing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage Life (Unopened)\u003c\/th\u003e\n\u003ctd\u003eAt least 6 months in a cool, dry place\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRubber Type\u003c\/th\u003e\n\u003ctd\u003eNon-silicone RTV (follow specific Castaldo procedures)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCastaldo LiquaCast® Long-Life Part A\u003c\/li\u003e\n\u003cli\u003eCastaldo LiquaCast® Long-Life Part B\u003c\/li\u003e\n\u003cli\u003eTotal net contents: 2.2 lb (1 kg); mix 1:1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eJewelry and small-parts molds requiring high detail retention, especially thin filigree and fine-channel designs.\u003c\/li\u003e\n\u003cli\u003eMost CAD-CAM printed resins and wax patterns; for certain resins, use a barrier coat and\/or mold release (see Notes).\u003c\/li\u003e\n\u003cli\u003eWorks with vacuum degassing. If no vacuum pump is available, pressure curing in an empty (unheated) wax injector pot is an alternative.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStore finished molds in airtight containers away from heat and light; do not store in contact with molds made from other rubber types.\u003c\/li\u003e\n\u003cli\u003eSome resins may soften or adhere; use a barrier coating (e.g., PVA, spray paint, or Castaldo resin release) and then apply release spray as needed.\u003c\/li\u003e\n\u003cli\u003eAvoid moisture contamination; do not mix in paper cups or with wooden tools.\u003c\/li\u003e\n\u003cli\u003eUse gloves and eye protection; ensure adequate ventilation. See SDS and product labels for full safety guidance.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Castaldo","offers":[{"title":"Default Title","offer_id":43579571798230,"sku":"122.617","price":109.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/castaldo-liquacast-long-life-jewelry-molding-rubber-1-kilo-kit-otto-frei.jpg?v=1719958587","url":"https:\/\/www.ottofrei.com\/products\/castaldo-liquacast-long-life-rtv-molding-rubber-1kg-kit","provider":"Otto Frei","version":"1.0","type":"link"}