{"product_id":"dow-corning-99180649-rtv-silicone-joint-sealant-10-1-oz","title":"Dow Corning 99180649 Rtv Silicone Joint Sealant 10.1 Oz","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DOW CORNING 99180649 is a black RTV silicone joint sealant packaged in a 10.1 oz cartridge, part of the 739 series. It cures at room temperature to form a flexible, durable seal rated for continuous service from -49 degrees F to 392 degrees F. Tack-free time is 75 minutes, with full cure achieved in 24 to 72 hours. HVAC technicians, plumbers, and mechanical contractors use this sealant to seal joints, seams, and penetrations where thermal cycling and vibration resistance are required. It meets UL 94 V-1 flame-rating standards.\u003c\/p\u003e\n\u003cp\u003eThis sealant is suited for residential and light commercial mechanical applications where a flexible, heat-resistant seal is needed. It adheres directly to ceramic, glass, and metal substrates without a primer in most conditions. Common uses include sealing ductwork joints, HVAC cabinet penetrations, flue collar joints, and similar metal-to-metal or metal-to-glass assemblies. The black color makes it a practical choice for visible seams on dark equipment surfaces where appearance matters alongside performance.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRTV silicone chemistry provides a flexible, permanent seal after room-temperature cure\u003c\/li\u003e\n  \u003cli\u003eOperating range of -49 degrees F to 392 degrees F suits high-heat HVAC and mechanical applications\u003c\/li\u003e\n  \u003cli\u003e75-minute tack-free dry time allows repositioning before the seal sets\u003c\/li\u003e\n  \u003cli\u003eAdheres to ceramic, glass, and metal substrates\u003c\/li\u003e\n  \u003cli\u003eUL 94 V-1 flame-rated for use in and around electrical and mechanical enclosures\u003c\/li\u003e\n  \u003cli\u003eStandard 10.1 oz cartridge fits common caulk guns used in the trade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-compatible sealant for use on metal, glass, and ceramic surfaces in HVAC, plumbing, and general mechanical assemblies where a flexible, heat-resistant silicone joint sealant is specified.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis sealant is applied by licensed HVAC technicians, plumbers, or mechanical contractors using a standard cartridge caulk gun. Surfaces should be clean, dry, and free of oil or loose material before application for proper adhesion. Allow the sealant to reach full cure before exposing the joint to operating temperatures or pressure. Work in a well-ventilated area, as acetic-acid off-gassing is common during the cure cycle of RTV silicone products.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 739\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContainer Size\u003c\/strong\u003e: 10.1 oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContainer Type\u003c\/strong\u003e: Cartridge\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Operating Temperature\u003c\/strong\u003e: -49 degrees F (-45 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 392 degrees F (200 degrees C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTack-Free Dry Time\u003c\/strong\u003e: 75 minutes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Cure Time\u003c\/strong\u003e: 24 to 72 hours\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdheres To\u003c\/strong\u003e: Ceramic, Glass, Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: UL 94 V-1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.88 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 99180649\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DOW CORNING","offers":[{"title":"Default Title","offer_id":51540314456370,"sku":"99180649","price":36.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/98ffd5dff892712e2d43be5e54f460bf.jpg?v=1785851957","url":"https:\/\/voomisupply.com\/products\/dow-corning-99180649-rtv-silicone-joint-sealant-10-1-oz","provider":"Voomi Supply","version":"1.0","type":"link"}