{"product_id":"pemko-s88bl21-252-21-adhesive-perimeter-gasketing-black-finish","title":"Pemko S88BL21 252\" 21' Adhesive Perimeter Gasketing Black Finish","description":"\u003cp\u003eThe S88BL21 adhesive perimeter gasketing seals gaps up to 1\/16\" around door frames and other openings. This silicone weatherstrip installs directly to door frames or jambs where air infiltration compromises building envelope performance. \u003ca href=\"\/companies\/pemko\"\u003ePemko\u003c\/a\u003e designed this 252-inch roll for continuous perimeter sealing on standard commercial doors.\u003c\/p\u003e\n\n\u003cp\u003eThe adhesive backing eliminates mechanical fasteners and provides clean installation on most frame materials. Black silicone construction resists weathering and maintains flexibility across temperature ranges. This gasketing compresses under door closure to create an effective air barrier.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSilicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e252\" (21 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eAdhesive backing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGap Seal\u003c\/th\u003e\n\u003ctd\u003eUp to 1\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e5 years limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThis gasketing meets UL 10C positive pressure fire testing standards and UL 1784 air leakage requirements. ASTM E283 and ANSI\/BHMA A156.22 compliance supports weatherization and door sealing specifications. GREENGUARD Gold certification confirms low chemical emissions.\u003c\/p\u003e\n\n\u003cp\u003eFire door assemblies requiring \u003ca href=\"\/resources\/building-codes-standards\/fire-inspection-compliance\/ul-10c-fire-rated-doors\"\u003eUL 10C fire ratings\u003c\/a\u003e benefit from this tested perimeter seal. For broader building envelope context, \u003ca href=\"\/resources\/building-codes-standards\/emergency-life-safety\/nfpa-101\"\u003eNFPA 101 egress requirements\u003c\/a\u003e often intersect with door sealing specifications.\u003c\/p\u003e","brand":"Pemko","offers":[{"title":"Each","offer_id":46754809053361,"sku":"S88BL21","price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/5269\/4961\/files\/0_66c1fde8-7fca-46af-9059-55eefec46caf.webp?v=1775808374","url":"https:\/\/shop.usmadesupply.com\/products\/pemko-s88bl21-252-21-adhesive-perimeter-gasketing-black-finish","provider":"US Made Supply","version":"1.0","type":"link"}