{"product_id":"gaf-everguard-waterblock-mastic-black-10-5-oz-cartridge","title":"GAF EverGuard WaterBlock Mastic, Black – 10.5 oz Cartridge","description":"\n    \u003ch1\u003eEverGuard WaterBlock Butyl Mastic Sealant\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eOne-part, butyl-based high-viscosity mastic designed for commercial roofing sealant applications. Ideal for sealing between flashing membranes and substrates behind termination bars, and between roofing membranes and drain flanges.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eButyl-Based Formula:\u003c\/strong\u003e Provides strong, durable sealing for roofing details\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Viscosity Mastic:\u003c\/strong\u003e Stays in place for reliable water-blocking performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTargeted Roofing Use:\u003c\/strong\u003e For flashing terminations and drain flange interfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Convenience:\u003c\/strong\u003e 10.5 oz cartridge fits standard caulk guns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black for discreet, professional finishes\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003chr\u003e\n    \u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n                \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGAF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEverGuard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWaterBlock Mastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComposition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne-part butyl-based mastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eViscosity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-viscosity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackaging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5 oz cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealing between flashing membrane and substrate behind termination bars; sealing between roofing membrane and drain flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePieces per Carton\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStyle Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdhesives, Caulks \u0026amp; Sealants\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003chr\u003e\n    \u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is this mastic compatible with TPO roofing systems?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is intended for use with EverGuard and similar single-ply roofing details per product description.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Where should I apply it?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Use between flashing membrane and substrate behind termination bars, and between roofing membrane and drain flanges.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Is it a single-component product?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is a one-part butyl-based sealant; no mixing required.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What size is the cartridge?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e 10.5 oz cartridge.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What color is the mastic?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Black.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eSeamless Strength for Rooftop Details\u003c\/h2\u003e\n    \u003cp\u003eThis mastic delivers a crisp, professional finish while quietly fortifying the most vulnerable roof transitions. Its dense butyl body clings with conviction, creating a clean, confident seal at terminations and drains. Pair it with sleek metal flashing and precision-applied membranes for a refined, high-performance edge detail. It’s a discreet essential that elevates both the look and longevity of a roof—true luxury in function.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eSeal critical roof transitions with confidence—choose EverGuard WaterBlock Mastic for durable, professional results.\u003c\/strong\u003e\u003c\/p\u003e\n    \n    \n    ","brand":"GAF","offers":[{"title":"Default Title","offer_id":52396181750127,"sku":"477479","price":8.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/477479_default_hero_a0e56265-eb9a-4996-a08d-c890f4c834c1.jpg?v=1763096486","url":"https:\/\/soporarbor.shop\/products\/gaf-everguard-waterblock-mastic-black-10-5-oz-cartridge","provider":"Super Arbor","version":"1.0","type":"link"}