{"product_id":"3m-7100138818-fire-barrier-cast-in-device-6-inches","title":"3M 7100138818 Fire Barrier Cast-in Device 6 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7100138818 is an intumescent cast-in firestop device designed to seal 6-inch non-metallic penetrations through fire-rated concrete floor assemblies. The device attaches directly to formwork before the concrete slab is poured. Once the slab cures and forms are removed, the opening created by the device serves as a pathway for mechanical, electrical, or plumbing penetrants. The intumescent material expands under heat to close the annular space around the pipe or conduit, providing up to 3-hour fire protection. Licensed electricians, plumbers, and mechanical contractors routinely install this device during new construction or concrete pour phases.\u003c\/p\u003e\n\u003cp\u003eThis cast-in device is suited for residential and commercial construction projects where fire-rated concrete floor assemblies require through-penetration protection. It is used when scheduling firestop measures during the concrete forming stage rather than as a post-installed collar. Typical applications include multi-story buildings, podium slabs, and any project governed by fire-resistance-rated floor assembly requirements. Mechanical, electrical, and plumbing penetrants can be routed through the formed opening after the slab is complete.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eIntumescent construction expands under heat to seal the annular space around non-metallic penetrants\u003c\/li\u003e\n  \u003cli\u003eRated for up to 3-hour fire protection in fire-rated concrete floor assemblies\u003c\/li\u003e\n  \u003cli\u003eInstalls by attaching to formwork before concrete pour, eliminating post-installed collar labor\u003c\/li\u003e\n  \u003cli\u003eAccommodates mechanical, electrical, and plumbing penetrants through a single opening\u003c\/li\u003e\n  \u003cli\u003e6-inch device size matches standard pipe and conduit penetration dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 6-inch non-metallic penetrations through fire-rated concrete floor assemblies. Suitable for use with mechanical, electrical, and plumbing penetrants in cast-in-place concrete slab applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by the trade responsible for the penetrating element prior to the concrete pour. The device must be secured to the form so it remains positioned correctly during the pour. Power-down or service shutoff is not required at the casting stage, but all penetrant routing through the cured slab should follow applicable fire code requirements, including IBC and NFPA 101. Do not modify or cut the intumescent collar, as any alteration may compromise the rated assembly performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePenetration Size\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFire Protection Rating\u003c\/strong\u003e: Up to 3 hours\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePenetration Type\u003c\/strong\u003e: Non-metallic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembly Type\u003c\/strong\u003e: Fire-rated concrete floor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.37 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 2\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: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7100138818\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51346515362098,"sku":"7100138818","price":215.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310527940.jpg?v=1782082463","url":"https:\/\/voomisupply.com\/products\/3m-7100138818-fire-barrier-cast-in-device-6-inches","provider":"Voomi Supply","version":"1.0","type":"link"}