{"product_id":"dow-corning-1891961-rtv-silicone-joint-sealant-3-oz-silver","title":"Dow Corning 1891961 Rtv Silicone Joint Sealant 3 Oz Silver","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DOW CORNING 1891961 is an RTV silicone joint sealant in a 3 oz tube, formulated for sealing, bonding, and gasketing applications across a wide range of industrial and mechanical systems. Part of the Series 732 line, this silver-colored compound cures at room temperature and reaches a tack-free state in 20 minutes, with full cure achieved in 24 hours. It is rated for continuous service from -76 degrees F to 356 degrees F (-60 degrees C to 180 degrees C), making it suitable for high-heat environments encountered in HVAC, plumbing, and equipment maintenance. Licensed tradespeople and maintenance technicians apply this sealant where flexible, durable, temperature-resistant seals are required.\u003c\/p\u003e\u003cp\u003eThis sealant is commonly used in residential and commercial applications where joints, seams, or mating surfaces require a resilient, heat-resistant seal. Typical uses include HVAC ductwork connections, equipment housings, metal-to-metal joints, and general mechanical assembly. It adheres to glass, metal, and plastic substrates, giving installers flexibility across multiple material types. The Series 732-Aluminum designation indicates the silver pigment and aluminum-filled formulation, which suits applications where a metallic finish or added thermal conductivity is beneficial.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRTV silicone chemistry cures at room temperature without heat or specialized equipment\u003c\/li\u003e\n\u003cli\u003eTack-free in 20 minutes, full cure in 24 hours for fast return to service\u003c\/li\u003e\n\u003cli\u003eOperating range from -76 degrees F to 356 degrees F (-60 degrees C to 180 degrees C)\u003c\/li\u003e\n\u003cli\u003eAdheres to glass, metal, and plastic substrates\u003c\/li\u003e\n\u003cli\u003eFood-safe formulation meets 21 CFR 177.2600 and MIL-A-46106 standards\u003c\/li\u003e\n\u003cli\u003eSilver color suits metallic surface applications and provides a clean finished appearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on glass, metal, and plastic substrates. Meets 21 CFR 177.2600 (FDA food-contact compliance) and MIL-A-46106 military specification. Part of the DOW CORNING Series 732 product line.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eClean and dry all mating surfaces before applying sealant to ensure proper adhesion. Power down or isolate any equipment being serviced before applying sealant to joints or housings. Allow the full 24-hour cure time before subjecting the joint to operating temperatures, pressure, or mechanical stress. Application is typically performed by HVAC technicians, plumbers, or general maintenance professionals using standard caulking or applicator tools appropriate for 3 oz tubes.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Type\u003c\/strong\u003e: RTV Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 732 (Series Part Number: 732-Aluminum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Type\u003c\/strong\u003e: Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Size\u003c\/strong\u003e: 3 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTack-Free Dry Time\u003c\/strong\u003e: 20 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Cure Time\u003c\/strong\u003e: 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Operating Temperature\u003c\/strong\u003e: -76 degrees F (-60 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 356 degrees F (180 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdheres To\u003c\/strong\u003e: Glass, Metal, Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental\u003c\/strong\u003e: Food Safe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: 21 CFR 177.2600, MIL-A-46106\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.33 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DOW CORNING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1891961\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DOW CORNING","offers":[{"title":"Default Title","offer_id":51539402785074,"sku":"1891961","price":22.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e6831cabfb6c9fada8a27c4f11202bd2.jpg?v=1785839317","url":"https:\/\/voomisupply.com\/products\/dow-corning-1891961-rtv-silicone-joint-sealant-3-oz-silver","provider":"Voomi Supply","version":"1.0","type":"link"}