{"product_id":"permabond-et5441-thermally-conductive-2-part-epoxy-high-temperature-metal-bonding-adhesive","title":"Permabond ET5441 Thermally Conductive 2-Part Epoxy, High-Temperature Metal Bonding Adhesive","description":"\u003cp\u003ePermabond ET5441 is a thixotropic, thermally conductive two-part epoxy built for bonding metal parts that run hot. It reaches full cure in 7 days at room temperature, or in 24 hours at room temperature followed by 30 minutes at 80°C (176°F). Cured bonds hold up well against motor oil, glycol, and hot or cold water.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Permabond ET5441?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermally conductive:\u003c\/strong\u003e 1.1 W\/(m·K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-temperature resistant:\u003c\/strong\u003e service from -55°C (-67°F), with brief exposure up to 200°C (392°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2:1 mix ratio\u003c\/strong\u003e by weight and volume\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoom temperature cure,\u003c\/strong\u003e with a faster heat-accelerated option\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical resistance\u003c\/strong\u003e to motor oil, glycol, and hot or cold water\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUL94 HB flammability rating\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets ECSS-Q-ST-70-02C\u003c\/strong\u003e thermal vacuum outgassing screening for space materials\u003c\/li\u003e\n\u003cli\u003eSupplied in 50ml and 400ml dual cartridges\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBond Strength\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSubstrate\u003c\/th\u003e\n\u003cth align=\"right\"\u003eShear Strength (ISO 4587)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e20 to 25 N\/mm² (2,900 to 3,625 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e20 to 25 N\/mm² (2,900 to 3,625 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e17 to 21 N\/mm² (2,465 to 3,045 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Fiber\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e25 to 30 N\/mm² (3,625 to 4,350 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFRP (Glass\/Epoxy)\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e\u0026gt;19 N\/mm² (\u0026gt;2,755 psi)*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGRP (Glass\/Polyester)\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e\u0026gt;10 N\/mm² (\u0026gt;1,450 psi)*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePBT, 50% Glass Filled\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e4 to 6 N\/mm² (580 to 870 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolycarbonate\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e2 to 4 N\/mm² (290 to 580 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003ctd align=\"right\"\u003e\u0026gt;6 N\/mm² (\u0026gt;870 psi)*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Substrate failed before the bond. Tensile strength at break (DIN 53504): 50 N\/mm² (7,250 psi). Elongation at break: 2.9%. Hardness (ISO 868): 85 to 95 Shore D. Actual bond strength varies with substrate, joint design, gap and surface prep.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eBuilt for Heat\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal conductivity:\u003c\/strong\u003e 1.1 W\/(m·K), so heat moves away from bonded components instead of building up at the joint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass transition temperature (Tg):\u003c\/strong\u003e 65°C (149°F) after 7 days at 23°C. Rises to 113°C (235°F) with 24 hours at room temperature plus 30 minutes at 80°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoefficient of thermal expansion:\u003c\/strong\u003e 23 × 10⁻⁶\/K below Tg, 111 × 10⁻⁶\/K above Tg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot strength:\u003c\/strong\u003e keeps 100% of room-temperature strength at 80°C (108 to 126% depending on cure schedule), 41 to 44% at 150°C, and 30 to 31% at 200°C\u003c\/li\u003e\n\u003cli\u003eHandles brief excursions to higher temperatures, such as paint baking or wave soldering, if the joint is not under heavy stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWorking Times at 23°C (73°F)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePot life:\u003c\/strong\u003e 150 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking strength:\u003c\/strong\u003e 8 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull cure:\u003c\/strong\u003e 7 days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHeat speeds the cure a lot. At 80°C (176°F), full cure takes about 2 hours. ET5441 is thick (250,000 cP \/ 200,000 cP at 23°C), so cold 50ml cartridges can be hard to push. Warm the cartridges before dispensing through a mixing nozzle.\u003c\/p\u003e\n\u003ch2\u003eRecommended Accessories\u003c\/h2\u003e\n\u003ch3\u003eFor 50ml Cartridges\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.perigeedirect.com\/products\/maven-dma50-dispenser-for-50ml-epoxy-adhesives-1-1-2-1-and-3-2-ratios\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eMaven DMA50 Manual Dispenser\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003eA hand-operated dispenser for 50ml dual cartridges. Good for repairs, occasional use and smaller bonding jobs.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.perigeedirect.com\/products\/gray-inlet-mixing-nozzle-green-4-5-inch-24-element-square-quad-for-50ml-gray-cap-cartridges-1-1-2-1-ratio\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eMIXPAC MBQ 05-24L Static Mixing Nozzle\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003eMixes the two components as they leave the cartridge for a consistent bead every time.\u003c\/p\u003e\n\u003ch3\u003eFor 400ml Cartridges\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.perigeedirect.com\/products\/maven-mv400-36x-manual-high-power-36x-thrust-2-part-adhesive-dispenser-for-all-400ml-415ml-1-1-2-1-3-1-and-4-1-ratio-cartridges\"\u003e\u003cstrong\u003eMaven MV400-36X Manual Dispenser\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003eA heavy-duty manual dispenser for 400ml dual cartridges. Suited to production, maintenance and fabrication work.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.perigeedirect.com\/products\/mixpac-mfq-08-24t-f-system-square-quadro-mixing-nozzle-for-1-1-2-1-ratio-larger-2-part-cartridges-200ml-225ml-250ml-380ml-400ml-copy\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eMIXPAC MFQ 10-24T Static Mixing Nozzle\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003eThe recommended mixing nozzle for the 400ml cartridge.\u003c\/p\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eMake sure bonding surfaces are \u003cstrong\u003eclean, dry and free from grease\u003c\/strong\u003e. Degrease with acetone or isopropanol.\u003c\/li\u003e\n\u003cli\u003eLightly abrade aluminum, copper and copper alloys with emery cloth to remove the oxide layer.\u003c\/li\u003e\n\u003cli\u003eLoad the dual cartridge into the dispenser and guide the plunger into the cartridge.\u003c\/li\u003e\n\u003cli\u003eRemove the cap and dispense until \u003cstrong\u003eboth components flow evenly\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eAttach the static mixing nozzle and start dispensing.\u003c\/li\u003e\n\u003cli\u003eApply to one surface and join the parts within the \u003cstrong\u003e150-minute pot life\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eClamp the assembly until handling strength is reached, about \u003cstrong\u003e8 hours\u003c\/strong\u003e at 23°C.\u003c\/li\u003e\n\u003cli\u003eAllow \u003cstrong\u003e7 days at room temperature\u003c\/strong\u003e for full cure, or speed it up with \u003cstrong\u003e2 hours at 80°C (176°F)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cem\u003eMix large quantities with care. The reaction gives off heat. These directions follow Permabond's current ET5441 technical datasheet.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeatsink and thermal-management component bonding\u003c\/li\u003e\n\u003cli\u003eElectronic component potting and encapsulation\u003c\/li\u003e\n\u003cli\u003eHeat exchanger assembly\u003c\/li\u003e\n\u003cli\u003eMotor and electrical component bonding\u003c\/li\u003e\n\u003cli\u003eAerospace and space-hardware assemblies that require outgassing compliance\u003c\/li\u003e\n\u003cli\u003eMetal parts that go through paint baking or wave soldering\u003c\/li\u003e\n\u003cli\u003eGeneral high-temperature structural metal bonding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOur Shelf Life Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh Batch:\u003c\/strong\u003e our newest stock, with the most shelf life remaining.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort Shelf Life:\u003c\/strong\u003e 1 to 3 months left before the expiration date. Good value if you will use it soon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecently Expired:\u003c\/strong\u003e past the printed date and sold as-is at a deep discount. Best for testing, prototypes and non-critical work. Run a test bond before relying on it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e Permabond ET5441\u003cbr\u003e\u003cstrong\u003eAdhesive type:\u003c\/strong\u003e Two-part epoxy (thixotropic)\u003cbr\u003e\u003cstrong\u003eMix ratio:\u003c\/strong\u003e 2:1 by weight and volume\u003cbr\u003e\u003cstrong\u003ePart A:\u003c\/strong\u003e White epoxy resin\u003cbr\u003e\u003cstrong\u003ePart B:\u003c\/strong\u003e Dark gray amine hardener\u003cbr\u003e\u003cstrong\u003eSpecific gravity:\u003c\/strong\u003e 2.1 (both parts)\u003cbr\u003e\u003cstrong\u003eMaximum gap fill:\u003c\/strong\u003e 2 mm (0.08 in.)\u003cbr\u003e\u003cstrong\u003ePot life:\u003c\/strong\u003e 150 minutes at 23°C\u003cbr\u003e\u003cstrong\u003eWorking strength:\u003c\/strong\u003e 8 hours at 23°C\u003cbr\u003e\u003cstrong\u003eFull cure:\u003c\/strong\u003e 7 days at 23°C, or 2 hours at 80°C\u003cbr\u003e\u003cstrong\u003eThermal conductivity:\u003c\/strong\u003e 1.1 W\/(m·K)\u003cbr\u003e\u003cstrong\u003eFlammability:\u003c\/strong\u003e UL94 HB\u003cbr\u003e\u003cstrong\u003eOutgassing:\u003c\/strong\u003e ECSS-Q-ST-70-02C (space material screening)\u003cbr\u003e\u003cstrong\u003eStorage temperature:\u003c\/strong\u003e 5 to 25°C (41 to 77°F)\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFor professional and industrial use. Keep away from strong oxidizing materials. Refer to the Safety Data Sheet for handling guidance.\u003c\/em\u003e\u003c\/p\u003e","brand":"Permabond","offers":[{"title":"Fresh Batch \/ 50ml (1.7 oz) \/ Cartridge + Nozzle","offer_id":67641427624190,"sku":"PBND_ET5441_050ML","price":46.0,"currency_code":"CAD","in_stock":true},{"title":"Fresh Batch \/ 400ml (13.5 oz) \/ Cartridge + Nozzle","offer_id":67641450627326,"sku":"PBND_ET5441_400ML","price":140.0,"currency_code":"CAD","in_stock":true},{"title":"Short Shelf Life (1-3 Mths Left) \/ 50ml (1.7 oz) \/ Cartridge + Nozzle","offer_id":67641504006398,"sku":"SL_PBND_ET5441_050ML","price":35.0,"currency_code":"CAD","in_stock":false},{"title":"Short Shelf Life (1-3 Mths Left) \/ 400ml (13.5 oz) \/ Cartridge + Nozzle","offer_id":67641504039166,"sku":"SL_PBND_ET5441_400ML","price":112.0,"currency_code":"CAD","in_stock":false},{"title":"Recently Expired \/ 50ml (1.7 oz) \/ Cartridge + Nozzle","offer_id":67641504071934,"sku":"XP_PBND_ET5441_050ML","price":22.0,"currency_code":"CAD","in_stock":false},{"title":"Recently Expired \/ 400ml (13.5 oz) \/ Cartridge + Nozzle","offer_id":67641504104702,"sku":"XP_PBND_ET5441_400ML","price":70.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1212\/5762\/files\/permabond-et5441-400ml-back.jpg?v=1790961509","url":"https:\/\/www.perigeedirect.com\/en-ca\/products\/permabond-et5441-thermally-conductive-2-part-epoxy-high-temperature-metal-bonding-adhesive","provider":"Perigee Direct","version":"1.0","type":"link"}