{"id":8075530698932,"title":"3M Aluminum Foil Tape 3340, 2.5\" x 50 yd, 4.0 mil, Silver, HVAC, Sealing and Patching Hot and Cold Air Ducts, Fiberglass Duct Board, Insulation, Metal Repair 2.5 inches x 50 yards x 0.004 inches","handle":"3m-aluminum-foil-tape-3340-2-5-x-50-yd-4-0-mil-silver-hvac-sealing-and-patching-hot-and-cold-air-ducts-fiberglass-duct-board-insulation-metal-repair-2-5-inches-x-50-yards-x-0-004-inches","description":"\u003ch3\u003e3M Aluminum Foil Tape 3340, 2.5\" x 50 yd, 4.0 mil, Silver, HVAC, Sealing and Patching Hot and Cold Air Ducts, Fiberglass Duct Board, Insulation, Metal Repair\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eWhen sealing ducts and other surfaces for heating, ventilation and air\nconditioning systems (HVAC), it's essential to have a strong, long-lasting\nfoil tape that can stand up well to hot and cold temperatures. The 3M Foil\nTape 3340 has the combination of 2.0 mil aluminum foil backing and strong,\npressure sensitive acrylic adhesive that gives our tape a superb operational\ntemperature range of -40°F (-40°C) to 300°F (149°C) making it ideal for\nsealing rigid fiberglass duct boards and flexible air duct systems. The foil\nbacking also serves as an excellent barrier against moisture, dust and many\nchemicals — making it strong, durable and long-lasting. The very low moisture\nvapor transmission rate makes the tape a good sealant and the acrylic adhesive\nsupplies superior temperature and UV resistance to give you a strong, lasting\nand reliable bond. It also has an easy releasing poly coated kraft paper liner\nto protect the adhesive and keep the tape ready for use. 3340 tape meets\nrequirements for UL 181 A-P and UL 181 B-FX Listings as a measure of\nreliability and quality standards. 3M Foil Tape 3340 is used in a variety of\napplications including heating ventilation air conditioning (HVAC), duct\nclosure, vapor seal on reinforced fiberglass duct board, rigid fiber glass\nduct board, and flexible air ducts and air connectors across a number of\nindustries, including: transportation, specialty vehicle, metalworking,\nconstruction, automotive, military and government, general industrial, MRO,\nelectronics and aerospace.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eVAPOR SEAL TAPE: 2.0 mil aluminum foil backing (4.0 mil total thickness) with a strong, pressure sensitive acrylic adhesive is ideal as a vapor seal tape for duct closure.\u003c\/li\u003e\n \u003cli\u003eHOT AND COLD TEMPERATURES: Combination of a foil backing and acrylic adhesive gives this tape a superb operational temperature range of -40F-300F (-40C-149C).\u003c\/li\u003e\n \u003cli\u003eLONG LASTING: The foil backing serves as an excellent barrier against moisture, dust and many chemicals - making it strong, durable and long-lasting.\u003c\/li\u003e\n \u003cli\u003eAPPLICATIONS: Heating Ventilation Air Conditioning (HVAC), duct closure, vapor seal on reinforced fiberglass duct board, rigid fiber glass duct board, flexible air ducts and air connectors.\u003c\/li\u003e\n \u003cli\u003eListed for both UL181A-P and UL181B-FX\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-06-29T16:29:54+10:00","created_at":"2026-06-29T15:53:26+10:00","vendor":"3M","type":"Duct Tape","tags":["tapes_June2026"],"price":22300,"price_min":22300,"price_max":22300,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44256004997300,"title":"Silver \/ 2.5\" x 50 YD \/ 2.5 inches x 50 yards x 0.004 inches","option1":"Silver","option2":"2.5\" x 50 YD","option3":"2.5 inches x 50 yards x 0.004 inches","sku":"B091QCSQXK","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"3M Aluminum Foil Tape 3340, 2.5\" x 50 yd, 4.0 mil, Silver, HVAC, Sealing and Patching Hot and Cold Air Ducts, Fiberglass Duct Board, Insulation, Metal Repair 2.5 inches x 50 yards x 0.004 inches - Silver \/ 2.5\" x 50 YD \/ 2.5 inches x 50 yards x 0.004 inches","public_title":"Silver \/ 2.5\" x 50 YD \/ 2.5 inches x 50 yards x 0.004 inches","options":["Silver","2.5\" x 50 YD","2.5 inches x 50 yards x 0.004 inches"],"price":22300,"weight":870,"compare_at_price":null,"inventory_management":"shopify","barcode":"638060401323","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/auspowers.com\/cdn\/shop\/files\/91kKcruIt5L.jpg?v=1782712409","\/\/auspowers.com\/cdn\/shop\/files\/81fWzR62VTL.jpg?v=1782712409","\/\/auspowers.com\/cdn\/shop\/files\/81FywL6p4SL.jpg?v=1782712408","\/\/auspowers.com\/cdn\/shop\/files\/81ASLyw85yL.jpg?v=1782712408","\/\/auspowers.com\/cdn\/shop\/files\/81XGUHtR7VL.jpg?v=1782712408","\/\/auspowers.com\/cdn\/shop\/files\/81AOBf6PqbL.jpg?v=1782712408","\/\/auspowers.com\/cdn\/shop\/files\/61psteq4W4L.jpg?v=1782712408"],"featured_image":"\/\/auspowers.com\/cdn\/shop\/files\/91kKcruIt5L.jpg?v=1782712409","options":["Color","Pattern Name","Size"],"media":[{"alt":null,"id":33071186084020,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2560,"width":2560,"src":"\/\/auspowers.com\/cdn\/shop\/files\/91kKcruIt5L.jpg?v=1782712409"},"aspect_ratio":1.0,"height":2560,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/91kKcruIt5L.jpg?v=1782712409","width":2560},{"alt":null,"id":33071186116788,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2560,"width":2560,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81fWzR62VTL.jpg?v=1782712409"},"aspect_ratio":1.0,"height":2560,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81fWzR62VTL.jpg?v=1782712409","width":2560},{"alt":null,"id":33071186149556,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81FywL6p4SL.jpg?v=1782712408"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81FywL6p4SL.jpg?v=1782712408","width":2000},{"alt":null,"id":33071186182324,"position":4,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81ASLyw85yL.jpg?v=1782712408"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81ASLyw85yL.jpg?v=1782712408","width":2000},{"alt":null,"id":33071186215092,"position":5,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81XGUHtR7VL.jpg?v=1782712408"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81XGUHtR7VL.jpg?v=1782712408","width":2000},{"alt":null,"id":33071186247860,"position":6,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81AOBf6PqbL.jpg?v=1782712408"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81AOBf6PqbL.jpg?v=1782712408","width":2000},{"alt":null,"id":33071186280628,"position":7,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/auspowers.com\/cdn\/shop\/files\/61psteq4W4L.jpg?v=1782712408"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/61psteq4W4L.jpg?v=1782712408","width":2000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e3M Aluminum Foil Tape 3340, 2.5\" x 50 yd, 4.0 mil, Silver, HVAC, Sealing and Patching Hot and Cold Air Ducts, Fiberglass Duct Board, Insulation, Metal Repair\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eWhen sealing ducts and other surfaces for heating, ventilation and air\nconditioning systems (HVAC), it's essential to have a strong, long-lasting\nfoil tape that can stand up well to hot and cold temperatures. The 3M Foil\nTape 3340 has the combination of 2.0 mil aluminum foil backing and strong,\npressure sensitive acrylic adhesive that gives our tape a superb operational\ntemperature range of -40°F (-40°C) to 300°F (149°C) making it ideal for\nsealing rigid fiberglass duct boards and flexible air duct systems. The foil\nbacking also serves as an excellent barrier against moisture, dust and many\nchemicals — making it strong, durable and long-lasting. The very low moisture\nvapor transmission rate makes the tape a good sealant and the acrylic adhesive\nsupplies superior temperature and UV resistance to give you a strong, lasting\nand reliable bond. It also has an easy releasing poly coated kraft paper liner\nto protect the adhesive and keep the tape ready for use. 3340 tape meets\nrequirements for UL 181 A-P and UL 181 B-FX Listings as a measure of\nreliability and quality standards. 3M Foil Tape 3340 is used in a variety of\napplications including heating ventilation air conditioning (HVAC), duct\nclosure, vapor seal on reinforced fiberglass duct board, rigid fiber glass\nduct board, and flexible air ducts and air connectors across a number of\nindustries, including: transportation, specialty vehicle, metalworking,\nconstruction, automotive, military and government, general industrial, MRO,\nelectronics and aerospace.\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eVAPOR SEAL TAPE: 2.0 mil aluminum foil backing (4.0 mil total thickness) with a strong, pressure sensitive acrylic adhesive is ideal as a vapor seal tape for duct closure.\u003c\/li\u003e\n \u003cli\u003eHOT AND COLD TEMPERATURES: Combination of a foil backing and acrylic adhesive gives this tape a superb operational temperature range of -40F-300F (-40C-149C).\u003c\/li\u003e\n \u003cli\u003eLONG LASTING: The foil backing serves as an excellent barrier against moisture, dust and many chemicals - making it strong, durable and long-lasting.\u003c\/li\u003e\n \u003cli\u003eAPPLICATIONS: Heating Ventilation Air Conditioning (HVAC), duct closure, vapor seal on reinforced fiberglass duct board, rigid fiber glass duct board, flexible air ducts and air connectors.\u003c\/li\u003e\n \u003cli\u003eListed for both UL181A-P and UL181B-FX\u003c\/li\u003e\n \u003c\/ul\u003e"}