{"product_id":"rcd-sealant-1-gallon-mastic-air-duct-sealant-ul-listed","title":"Rcd Sealant 1 Gallon Mastic Air Duct Sealant Ul Listed","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe RCD SEALANT 1 GALLON is a fiber-reinforced, water-borne mastic duct sealant formulated for permanently sealing joints and seams across a wide range of air distribution components. Supplied in a 1-gallon container, this white, flexible compound carries a UL listing and is engineered for low-to-high-velocity air duct applications. It bonds to flexible air ducts, ductboard, rigid fiberglass duct, sheet metal ductwork, thermal insulation, crawl space vapor retarders, and house wrap. Licensed HVAC technicians and weatherization contractors rely on it for consistent adhesion and long-term flexibility in both residential and light commercial installs.\u003c\/p\u003e\u003cp\u003eThis sealant is suited for sealing leaks in return air ducts, supply ducts, air handlers, plenums, grilles, registers, dampers, and boots. It is also used in home performance and energy-efficiency work to reduce air infiltration into conditioned living spaces. Sealing crawl spaces and duct systems with this product supports improved indoor air quality, reduced humidity levels, and measurable energy savings. Professional HVAC contractors and home weatherization specialists use it as a standard material in duct sealing and building envelope work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFiber-reinforced formula provides flexibility and long-term joint integrity\u003c\/li\u003e\n\u003cli\u003eWater-borne, white compound suitable for brush, trowel, palm, extrusion, or spray application\u003c\/li\u003e\n\u003cli\u003eUL listed for use on UL-listed air duct systems\u003c\/li\u003e\n\u003cli\u003eRated for low-to-high-velocity air duct applications\u003c\/li\u003e\n\u003cli\u003eBonds to sheet metal, ductboard, flexible duct, insulation, vapor retarders, and house wrap\u003c\/li\u003e\n\u003cli\u003eSupports duct sealing, crawl space sealing, and air infiltration reduction in one product\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use on flexible air ducts, rigid fiberglass ductboard, sheet metal air ducts, thermal insulation, crawl space vapor retarders, house wrap, and UL-listed air duct assemblies in residential and commercial HVAC systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eApplied by licensed HVAC technicians or weatherization contractors using a brush, trowel, palm application, extrusion gun, or spray equipment. Power down the air handling system and verify zero airflow before applying sealant to duct joints or seams. Allow adequate cure time before restoring system operation. Work in accordance with applicable mechanical codes and manufacturer surface preparation guidance.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Fiber-Reinforced Mastic Air Duct Sealant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContainer Size\u003c\/strong\u003e: 1 gallon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase\u003c\/strong\u003e: Water-borne\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVelocity Rating\u003c\/strong\u003e: Low to High Velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListing\u003c\/strong\u003e: UL Listed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Method\u003c\/strong\u003e: Brush, trowel, palm, extrusion, or spray\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: SEALANT 1 GALLON\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RCD","offers":[{"title":"Default Title","offer_id":51284001620274,"sku":"SEALANT 1 GALLON","price":45.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309278032.png?v=1781065652","url":"https:\/\/voomisupply.com\/products\/rcd-sealant-1-gallon-mastic-air-duct-sealant-ul-listed","provider":"Voomi Supply","version":"1.0","type":"link"}