{"product_id":"3m-7000027570-dual-lock-reclosable-fastener-sj3540-black","title":"3M 7000027570 Dual Lock Reclosable Fastener SJ3540 Black","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7000027570 is a Dual Lock Reclosable Fastener sold under the SJ3540 series, designed for repeatable mechanical attachment without tools, hooks, or traditional hardware. The fastener features a rubber-based pressure-sensitive adhesive backing bonded to a black polypropylene mushroom-stem surface. With 250 stems per square inch and an engaged thickness of 0.23 inches, it delivers consistent closure force across a wide range of bonding surfaces. The roll format — 3 inches wide by 50 yards long — suits both high-volume fabrication shops and field installation teams. Rated for up to 1,000 open-and-close cycles, this product is installed by technicians across HVAC, electrical, and equipment panel applications where secure, removable attachment is required.\u003c\/p\u003e\u003cp\u003eThis fastener is intended for indoor use and performs in environments down to low temperatures with a maximum temperature resistance of 120 degrees F. It bonds reliably to a range of substrates including acrylic, polycarbonate, ABS plastics, powder-coated painted surfaces, and low surface energy materials such as polypropylene and polyethylene. Common installation scenarios include securing wire management panels, equipment access covers, control enclosures, and insulation blankets where repeated access is part of routine service workflow.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e250 stems per square inch for consistent mechanical closure force\u003c\/li\u003e\n\u003cli\u003e0.23 inch engaged thickness when mated face to face\u003c\/li\u003e\n\u003cli\u003eRated for up to 1,000 open-and-close cycles\u003c\/li\u003e\n\u003cli\u003eRubber-based adhesive backing adheres to plastics, powder coatings, and low surface energy materials\u003c\/li\u003e\n\u003cli\u003eBlack polypropylene construction rated to 120 degrees F\u003c\/li\u003e\n\u003cli\u003eRoll format: 3 inches wide x 50 yards long for cut-to-length field or shop use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with acrylic, polycarbonate, ABS plastics, powder-coated paint surfaces, polypropylene, and polyethylene substrates in indoor applications. Not intended for outdoor or high-temperature environments exceeding 120 degrees F.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSurface preparation is critical — clean bonding surfaces thoroughly to remove oil, dust, and moisture before applying the adhesive backing. Apply firm pressure across the full length of the fastener strip to ensure full adhesive contact. Allow adequate dwell time before loading the joint. Indoor use only; exposure to outdoor conditions or temperatures above the rated maximum may reduce adhesive bond strength over time.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: SJ3540\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem Density\u003c\/strong\u003e: 250 stems per square inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngaged Thickness\u003c\/strong\u003e: 0.23 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosure Life\u003c\/strong\u003e: 1,000 cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 120 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Polypropylene with rubber-based adhesive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll Width\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoll Length\u003c\/strong\u003e: 50 yards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type\u003c\/strong\u003e: Roll\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00021200231056\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: 3M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7000027570\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51344179626290,"sku":"7000027570","price":1343.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310515615.jpg?v=1782030892","url":"https:\/\/voomisupply.com\/products\/3m-7000027570-dual-lock-reclosable-fastener-sj3540-black","provider":"Voomi Supply","version":"1.0","type":"link"}