{"product_id":"crystal-clear™-222-mercury-free-trial-kit-1-75-lbs-0-79-kg","title":"Crystal Clear™ 222 - Mercury Free Trial Kit (1.75 lbs. \/ 0.79 kg.)","description":"\u003cdiv class=\"info\"\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e is a \u003cstrong\u003emercury-free\u003c\/strong\u003e, phthalate-free water white clear resin made specifically for applications that require optical clarity. Low viscosity ensures easy mixing and pouring. \u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e cures with negligible shrinkage. Cured castings are UV resistant and are not brittle. Vibrant colors and color effects are achieved by adding \u003cstrong\u003eSo‑Strong™\u003c\/strong\u003e, \u003cstrong\u003eUVO™\u003c\/strong\u003e or \u003cstrong\u003eIgnite™\u003c\/strong\u003e colorants. Applications include encapsulation, making prototype models, lenses, sculpture reproductions, decorative cast pieces, jewelry, prototype models, special effects and props.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eREQUIRED: Castings must be made under pressure using an appropriate pressure vessel (60 psi \/ 4.14 bar).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0780\/7539\/6411\/files\/crystalclear222spec.png?v=1730778375\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCAUTION: NOT FOR HOME USE. THIS PRODUCT IS FOR INDUSTRIAL USE ONLY. With adequate local exhaust ventilation, respiratory protection is not normally required when using this product. Where risk assessment shows air-purifying respirators are appropriate, follow OSHA respirator regulations and European Standards EN 141, 143 and 371. Protective clothing (gloves and long sleeves) is required to minimize the risk of dermal sensitization. If breathing is affected or a dermal rash develops, immediately cease using this product and seek medical attention. Read SDS before using.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"features\"\u003e\n\u003ca name=\"features\"\u003e\u003c\/a\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003eCured castings are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUV Resistant (resists yellowing due to ultra-violet light exposure)\u003c\/li\u003e\n\u003cli\u003eNot brittle\u003c\/li\u003e\n\u003cli\u003eMecury-Free\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVibrant colors and color effects are achieved by adding pigment dispersions. Applications include encapsulation, making prototype models, lenses, sculpture reproductions, decorative cast pieces, jewelry, special effects and props.\u003c\/p\u003e\n\u003ch2\u003eInstructions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSafety -\u003c\/strong\u003e Store and use at room temperature (73°F\/23°C). These products have a limited shelf life and should be used as soon as possible. Environmental humidity should be as low as possible. Good room size ventilation is essential. Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. Wearing a NIOSH approved respirator will minimize inhalation of residual fumes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSelecting a Mold Rubber -\u003c\/strong\u003e Pour into a urethane rubber mold (\u003cstrong\u003eVytaflex™\u003c\/strong\u003e urethane – release agent required), tin cured silicone mold (\u003cstrong\u003eMold Max™\u003c\/strong\u003e silicone) or \u003cstrong\u003eMold Star™ 15, 16 or 30\u003c\/strong\u003e platinum cured silicone (\u003cstrong\u003enot Mold Star™ T series\u003c\/strong\u003e). Do not use other rubber mold products.\u003c\/p\u003e\n\u003cp\u003eIf using \u003cstrong\u003eMold Max™\u003c\/strong\u003e silicone; to prevent cure inhibition, post-cure newly cured silicone mold for 8 hours at 150°F\/60°C and let cool prior to casting resin. If you are unsure about surface compatibility, a small scale trial casting should be made.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasting Thickness \u0026amp; Cure Time -\u003c\/strong\u003e The cure time and ultimate shrinkage of \u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e will vary depending on mass concentration, thickness of the casting, mold configuration, etc. For example, a 200 gram mass of \u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e will cure faster if left to cure in a conical vessel (cup) versus a casting dispersed as a thin sheet measuring 3 centimeters square by 1 mm thick. This is due to the heat generated by the concentration of material in the cup versus heat that is dissipated from the sheet casting.\u003c\/p\u003e\n\u003cp\u003eCastings will resist yellowing when exposed to UV, but may darken over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e is intended for casting thicknesses up to 2” (5.08 cm.) at a casting weight maximum of 10 lbs. (4.54 kgs.) Castings greater than 2” (5.08 cm.) thick with a casting weight over 10 lbs. (4.54 kgs.) should be layer cast.\u003c\/p\u003e\n\u003cp\u003ePre-heat the rubber mold at 150°F \/ 65°C for 4 hours before mixing \u0026amp; pouring \u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e. This will minimize the chances that cured castings will exhibit casting phenomenon such as fish-eyeing, suck back, corner rounding, large bubbles, etc.\u003c\/p\u003e\n\u003cp\u003eLiquid urethanes are moisture sensitive and will absorb atmospheric moisture. Mixing tools and containers should be clean and made of metal or plastic. Materials should be stored and used in a warm environment (73°F\/23°C).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePre-Mixing - \u003c\/strong\u003eStir or shake Part B thoroughly every time before dispensing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMeasuring - \u003c\/strong\u003eMaterials should be stored and used at room temperature (73°F\/ 23°C). The proper mixing ratio is 100A:75B by weight. You must use an accurate digital gram scale to weigh Parts A and B properly. Do not use an analog scale or attempt to measure components by volume. Dispense the required amount of Part A into a mixing container. Weigh out the appropriate amount of Part B and combine with Part A.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMixing -\u003c\/strong\u003e Mix SLOWLY, but thoroughly, for at least 90 seconds making sure that you scrape the sides and bottom of your container several times. If coloring or filling Crystal Clear™ 222, add filler or pigment dispersion to Part B and mix thoroughly before adding Part A.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePouring -\u003c\/strong\u003e If casting \u003cstrong\u003eCrystal Clear™ 222\u003c\/strong\u003e into a rubber mold, pour mixture in a single spot at the lowest point of the mold. If encapsulating an object, do not pour the mixture directly over the object. Let the mixture seek its level. A uniform flow will help minimize entrapped air. Castings must be made under pressure: After pouring the mixed resin, the entire casting assembly (mold, dam structure, etc.) must be placed in a pressure chamber and subjected to 60 PSI (4.14 bar) air pressure for at least 16 hours at room temperature prior to post curing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRoom Temperature Cure -\u003c\/strong\u003e \u003cstrong\u003eFollowed By Post Cure -\u003c\/strong\u003e Allow material to cure for at least 16 hours at room temperature (73°F \/ 23° C). Place entire mold structure in an oven and cure at 150°F \/ 65°C for 4 hours, followed by 4 hours at 212°F \/ 100°C. Allow casting or part to cool to room temperature before demolding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBecause no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.smooth-on.com\/tb\/files\/CRYSTAL_CLEAR_222_TB.pdf\" title=\"TDS\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eTDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.smooth-on.com\/msds\/files\/CRYSTAL%20CLEAR%203713%20A_3_B_3%20SDS.pdf\" title=\"SDS\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eSDS\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Smooth-On","offers":[{"title":"Default Title","offer_id":49645559251259,"sku":"","price":59.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/7539\/6411\/files\/crystal-clear-222-trial-533x400.webp?v=1730778635","url":"https:\/\/maacaffestore.com\/es\/products\/crystal-clear%e2%84%a2-222-mercury-free-trial-kit-1-75-lbs-0-79-kg","provider":"The Compleat Sculptor, Inc","version":"1.0","type":"link"}