{"product_id":"asc-ascsm1-asc-sm-silicone-mastic-high-solids-sealing-and-patching-compound-white-1-gallon-pail","title":"ASC SM Silicone Mastic High Solids Sealing and Patching Compound, White, 1 Gallon Pail","description":"\u003ch1\u003eASC SM Silicone Mastic High Solids Sealing and Patching Compound, White, 1 Gallon Pail\u003c\/h1\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eASC SM Silicone Mastic is a solvent free, single component, high solids sealing and patching compound sold as a 1 gallon pail in white. It forms a durable, weather resistant seal on penetrations, skylights, seams, holes, cracks and detail areas on most surfaces. Apply with a brush or trowel, with polyester fabric for three-course details.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eKey Features:\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh solids:\u003c\/strong\u003e 99% solids by volume per ASTM D-2369 with solvent-free, single component formulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather resistant:\u003c\/strong\u003e Superior adhesion and flexibility withstands extreme elongation and resists weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV stable:\u003c\/strong\u003e Highly reflective, UV stable design withstands direct exposure to sunlight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetail sealing:\u003c\/strong\u003e Especially developed to seal cracks, detail areas and surface imperfections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile repairs:\u003c\/strong\u003e Seals penetrations, skylights, seams and holes, and trowels over cracks in concrete, masonry, and wood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow VOC:\u003c\/strong\u003e VOC\/VOS below 50 grams per liter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush or trowel:\u003c\/strong\u003e Applied in the Three Course Installation Method using a paintbrush or trowel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eASCSM1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 pail, 1 gal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicone mastic, sealing and patching compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemistry \/ base\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicone, solvent free, single component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContainer size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 gallon pail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoll, brush, or trowel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDry \/ cure time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTack-free 1-2 hrs; dry to handle 3-4 hrs; varies with temperature and humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolids content\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99% by volume (ASTM D-2369)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVOC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50 g\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecific gravity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlash point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e141°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage \/ film thickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApply 1\/8-1\/4 in. (3.2-6.4 mm) per coat in Three Course Installation Method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible substrates\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMost surfaces; concrete, masonry, and wood cracks; new and existing roofs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoof repairs, priming and sealing penetrations, skylights, seams, holes and detail areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDo not store below 50°F (10°C) or above 120°F (49°C); do not allow to freeze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer warranty summary\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOne-year warranty against manufacturing defects; no labor or installation cost coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct weight, complete sell unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch2\u003eCoverage \u0026amp; How Much You Need:\u003c\/h2\u003e\u003cp\u003eApply at 1\/8-1\/4 in. (3.2-6.4 mm) per coat in the Three Course Installation Method. Additional applications may be necessary as elastic cement shrinks through drying; a 1 gallon pail suits crack, seam and detail repairs rather than large-area coating.\u003c\/p\u003e\u003ch2\u003eFit and Compatibility:\u003c\/h2\u003e\u003cp\u003ePairs with ASC polyester fabric in the Three Course Installation Method for reinforced detail sealing. Surfaces must be clean and dry before application; rusted metal should be brushed clean. Sold in the ASC roof repair system alongside ASC coatings and mastics.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eQ: What is included in the sell unit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e One 1 gallon pail of ASC SM Silicone Mastic in White.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What can it seal?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It primes and seals penetrations, skylights, seams, holes, cracks, detail areas and surface imperfections on most surfaces.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: Do I need fabric with it?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It is applied in the Three Course Installation Method: first coat 1\/8-1\/4 in., embed polyester fabric while wet, then immediately apply a second layer of the same thickness.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: How long does it take to dry?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Tack-free in 1-2 hours and dry to handle in 3-4 hours, depending on temperature, humidity, and film thickness.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What surface preparation is required?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Surfaces must be clean, dry and free of dust, dirt, oil, loose granules, mildew and contaminants; rusted metal should be cleaned with a wire brush.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eQ: What is the cleanup?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Clean tools with soap and warm water.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eExpert Verdict — Reviewed by the SuperArbor Pro Desk\u003c\/h2\u003e\u003cp\u003ePick ASC SM for crack, seam and detail repairs on most roof surfaces where a solvent-free silicone mastic with extreme elongation is needed. Work in the morning on a warm, sunny day to maximize cure time, and do not apply when rain is expected within 24 hours. Expect shrinkage through drying, so additional applications may be needed. For flashing-grade patches without reinforcement, ASC 911 in the same family is the related option.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor exterior use only; wear protective clothing and eyewear, ensure adequate ventilation, and do not apply when heavy dew or rain is expected within 24 hours.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOrder ASC SM Silicone Mastic in the 1 gallon pail for durable, weather resistant roof detail sealing.\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eProduct Documents:\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/asc-bm.com\/wp-content\/uploads\/2021\/07\/ASC-SM-Product-Sheet-2021.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"American Standard Coatings","offers":[{"title":"Default Title","offer_id":53498500120943,"sku":"ASCSM1","price":80.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/3499\/7051\/files\/IMG_1511-scaled-removebg-preview-1.png?v=1789836280","url":"https:\/\/superarbor.io\/products\/asc-ascsm1-asc-sm-silicone-mastic-high-solids-sealing-and-patching-compound-white-1-gallon-pail","provider":"Super Arbor","version":"1.0","type":"link"}