{"product_id":"rectorseal-metacaulk®-mc-835-self-leveling-firestop-sealant-gray-10-15-oz-cartridge","title":"RectorSeal Metacaulk® MC 835+ Self-Leveling Firestop Sealant – Gray, 10.15 oz Cartridge","description":"\u003cp data-start=\"91\" data-end=\"651\" class=\"PDq2pG_selectionAnchorContainer\"\u003eProtect horizontal fire-rated penetrations with confidence using \u003cstrong data-start=\"156\" data-end=\"220\"\u003eRectorSeal Metacaulk® MC 835+ Self-Leveling Firestop Sealant\u003c\/strong\u003e. Engineered with advanced neutral-cure silicone technology, this premium firestop sealant creates a flexible, durable barrier that helps prevent the spread of fire, smoke, toxic gases, and moisture through floor penetrations and construction joints. Designed for applications where dynamic movement is expected, it delivers long-lasting performance in both interior and exterior environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"653\" data-end=\"1180\"\u003eIts \u003cstrong data-start=\"657\" data-end=\"682\"\u003eself-leveling formula\u003c\/strong\u003e flows smoothly into horizontal openings, creating a consistent seal without the need for tooling. The one-component, ready-to-use silicone requires no mixing, offers excellent weather and chemical resistance, and cures to a flexible elastomeric seal that remains reliable even under continuous movement. Compatible with CPVC systems and protected against mold growth, \u003cstrong data-start=\"1051\" data-end=\"1073\"\u003eMetacaulk® MC 835+\u003c\/strong\u003e is an ideal choice for demanding commercial and industrial projects. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1182\" data-end=\"1452\"\u003eWhether you're sealing pipe penetrations, cable openings, floor joints, or curtain wall systems, \u003cstrong data-start=\"1279\" data-end=\"1315\"\u003eMetacaulk® MC 835+ Self-Leveling\u003c\/strong\u003e provides dependable firestop performance while simplifying installation and helping contractors meet today's building code requirements.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ycgkk5\" data-start=\"1454\" data-end=\"1470\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul data-start=\"1472\" data-end=\"2055\"\u003e\n\u003cli data-section-id=\"1udbzq5\" data-start=\"1472\" data-end=\"1528\"\u003eOne-component, self-leveling silicone firestop sealant\u003c\/li\u003e\n\u003cli data-section-id=\"1w0njac\" data-start=\"1529\" data-end=\"1596\"\u003eDesigned for horizontal floor penetrations and joint applications\u003c\/li\u003e\n\u003cli data-section-id=\"1qz4dvl\" data-start=\"1597\" data-end=\"1665\"\u003eHelps prevent the spread of fire, smoke, toxic gases, and moisture\u003c\/li\u003e\n\u003cli data-section-id=\"kbslq6\" data-start=\"1666\" data-end=\"1720\"\u003eFlexible elastomeric seal ideal for dynamic movement\u003c\/li\u003e\n\u003cli data-section-id=\"c25omz\" data-start=\"1721\" data-end=\"1769\"\u003eExcellent weather, UV, and chemical resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1kvu62g\" data-start=\"1770\" data-end=\"1815\"\u003eLow-odor, neutral-cure silicone formulation\u003c\/li\u003e\n\u003cli data-section-id=\"3h04sb\" data-start=\"1816\" data-end=\"1849\"\u003eNo mixing required—ready to use\u003c\/li\u003e\n\u003cli data-section-id=\"23dfgp\" data-start=\"1850\" data-end=\"1908\"\u003eMold-resistant protection in both wet and dry conditions\u003c\/li\u003e\n\u003cli data-section-id=\"1a161nn\" data-start=\"1909\" data-end=\"1962\"\u003eSTC Rating \u003cstrong data-start=\"1922\" data-end=\"1928\"\u003e55\u003c\/strong\u003e for improved acoustic performance\u003c\/li\u003e\n\u003cli data-section-id=\"cdvh12\" data-start=\"1963\" data-end=\"2055\"\u003eSuitable for both interior and exterior applications \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1cdzs8q\" data-start=\"2057\" data-end=\"2085\"\u003eRecommended Applications\u003c\/h3\u003e\n\u003cul data-start=\"2087\" data-end=\"2396\"\u003e\n\u003cli data-section-id=\"l5i9rs\" data-start=\"2087\" data-end=\"2118\"\u003eHorizontal floor penetrations\u003c\/li\u003e\n\u003cli data-section-id=\"43ycz1\" data-start=\"2119\" data-end=\"2140\"\u003eCurtain wall joints\u003c\/li\u003e\n\u003cli data-section-id=\"1n1unrw\" data-start=\"2141\" data-end=\"2174\"\u003eConstruction and control joints\u003c\/li\u003e\n\u003cli data-section-id=\"e7cvhw\" data-start=\"2175\" data-end=\"2193\"\u003eExpansion joints\u003c\/li\u003e\n\u003cli data-section-id=\"omftws\" data-start=\"2194\" data-end=\"2220\"\u003eEMT conduit penetrations\u003c\/li\u003e\n\u003cli data-section-id=\"1dqd36h\" data-start=\"2221\" data-end=\"2246\"\u003eSteel pipe penetrations\u003c\/li\u003e\n\u003cli data-section-id=\"1h45vg9\" data-start=\"2247\" data-end=\"2301\"\u003eElectrical and telecommunications cable penetrations\u003c\/li\u003e\n\u003cli data-section-id=\"1946329\" data-start=\"2302\" data-end=\"2396\"\u003eCommercial, industrial, and institutional construction\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Firestop Depot","offers":[{"title":"Default Title","offer_id":54224073425262,"sku":"RS-MC835SL-10OZ","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/8471\/9726\/files\/RectorSealMetacaulk_MC835_Self-LevelingFirestopSealant_Gray_10.15ozCartridge.webp?v=1782793745","url":"https:\/\/firestopdepot.com\/products\/rectorseal-metacaulk%c2%ae-mc-835-self-leveling-firestop-sealant-gray-10-15-oz-cartridge","provider":"Firestop Depot","version":"1.0","type":"link"}