{"product_id":"diversitech-640-fsk3-fsk-foil-scrim-tape-3in-x-150ft","title":"Diversitech 640-fsk3 Fsk Foil Scrim Tape 3in X 150ft","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DIVERSITECH 640-fsk3 is an FSK foil scrim tape designed for sealing and joining ductboard insulation systems. The tape combines a foil facing with a scrim and string reinforcement layer, delivering a durable, vapor-retarding seal at ductboard joints and seams. At 3 inches wide and 150 feet per roll, it provides substantial coverage for new installations and retrofit work. HVAC installers and sheet metal mechanics rely on this tape to maintain system integrity and comply with insulation facing requirements on fibrous ductboard assemblies.\u003c\/p\u003e\n\u003cp\u003eThis tape is applied to ductboard panel joints, edges, and penetrations in residential and light commercial HVAC duct systems. The FSK construction — foil, scrim, and kraft layers — matches the facing material used on standard ductboard panels, making it the correct choice when closing out or repairing FSK-faced duct assemblies. It is commonly used during new construction ductwork fabrication and duct renovation projects where maintaining a continuous vapor barrier is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFSK construction with reinforcing scrim and string layer for added tear resistance\u003c\/li\u003e\n  \u003cli\u003e3 inches wide for full coverage across standard ductboard joints and seams\u003c\/li\u003e\n  \u003cli\u003e150-foot roll length reduces changeouts on large jobs\u003c\/li\u003e\n  \u003cli\u003eFoil facing acts as a vapor retarder consistent with ductboard panel facings\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for use with ductboard such as AF984CT panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with FSK-faced ductboard panels including AF984CT ductboard. Suitable for sealing joints, seams, and edges on fibrous glass ductboard assemblies in residential and light commercial HVAC applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or sheet metal mechanics during ductwork fabrication or repair. Shut down the air handling system before servicing duct sections. Surface must be clean, dry, and free of dust or oils for proper adhesion. Follow local mechanical codes and manufacturer guidelines for ductboard joint sealing requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Duct Tape\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 150 feet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction\u003c\/strong\u003e: FSK Foil with Scrim and String Reinforcement\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: DIVERSITECH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 640-fsk3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DIVERSITECH","offers":[{"title":"Default Title","offer_id":51234030125362,"sku":"640-FSK3","price":36.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/307632686.jpg?v=1780115603","url":"https:\/\/voomisupply.com\/products\/diversitech-640-fsk3-fsk-foil-scrim-tape-3in-x-150ft","provider":"Voomi Supply","version":"1.0","type":"link"}