{"product_id":"epo-tek-353nd-high-temperature-epoxy-heat-cure-25g","title":"EPO-TEK® 353ND High Temperature Epoxy, Heat Cure (2.5g)","description":"\u003ch1\u003eEPO-TEK® 353ND High-Temperature Heat Cure Epoxy (2.5g Packet)\u003c\/h1\u003e\n\u003cp\u003eEPO-TEK® 353ND is a premium two-component epoxy adhesive designed for high-reliability applications in fiber optics, photonics, semiconductor packaging, medical devices, and aerospace assemblies. Trusted throughout the industry, this heat-cure epoxy provides exceptional bond strength, outstanding thermal stability, and excellent resistance to chemicals and environmental stress.\u003c\/p\u003e\n\u003cp\u003eSupplied in a convenient 2.5-gram pre-measured burst packet, EPO-TEK 353ND ensures accurate mixing ratios every time, reducing waste and simplifying assembly processes.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Benefits\u003c\/h2\u003e\n\u003ch3\u003eHigh Reliability for Critical Applications\u003c\/h3\u003e\n\u003cp\u003eDelivers strong, durable bonds in optical alignments, fiber optic terminations, semiconductor packaging, and other precision assemblies where long-term performance is essential.\u003c\/p\u003e\n\u003ch3\u003eVisual Cure Verification\u003c\/h3\u003e\n\u003cp\u003eThe epoxy changes to a distinctive amber color when fully cured, providing a quick visual confirmation of proper processing.\u003c\/p\u003e\n\u003ch3\u003eExcellent Thermal and Chemical Resistance\u003c\/h3\u003e\n\u003cp\u003eMaintains performance in demanding environments exposed to elevated temperatures, chemicals, and thermal cycling.\u003c\/p\u003e\n\u003ch3\u003eNASA Low Outgassing Qualified\u003c\/h3\u003e\n\u003cp\u003eMeets ASTM E595 low outgassing requirements when cured according to the recommended schedule, making it suitable for aerospace, vacuum, and sensitive electronic applications.\u003c\/p\u003e\n\u003ch3\u003eSuperior Optical Performance\u003c\/h3\u003e\n\u003cp\u003eProvides excellent transmission across key near-infrared wavelengths commonly used in fiber optic communication systems.\u003c\/p\u003e\n\u003ch3\u003eExtended Working Time\u003c\/h3\u003e\n\u003cp\u003eOffers up to 3 hours of pot life, allowing sufficient time for component positioning, alignment, and assembly.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eProduct Type: Two-Component Heat Cure Epoxy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePackage Size: 2.5 g Burst Packet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConsistency: Pourable Liquid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eViscosity at 23°C: 3,000 – 5,000 cPs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGlass Transition Temperature (Tg): ≥ 90°C (194°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShore D Hardness: 85\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefractive Index (Uncured): 1.5694 at 589 nm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum Intermittent Operating Temperature: Up to 350°C (662°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCoefficient of Thermal Expansion (CTE)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eBelow Tg: 54 × 10⁻⁶ in\/in\/°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAbove Tg: 206 × 10⁻⁶ in\/in\/°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOptical Transmission Performance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e550 nm: ≥ 50%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e800 – 1000 nm: ≥ 98%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1100 – 1600 nm: ≥ 95%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHandling and Cure Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePot Life: Up to 3 Hours\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended Cure Schedule: 1 Hour at 150°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFiber optic connector termination\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFiber optic component assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptical alignment and bonding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSemiconductor packaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHybrid microelectronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMedical device assembly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAerospace and vacuum applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePhotonics and laser systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEPO-TEK® 353ND remains one of the most widely specified high-temperature epoxies for precision optical and electronic assemblies where reliability, thermal stability, and optical performance are critical.\u003c\/p\u003e","brand":"Epo-Tek","offers":[{"title":"Default Title","offer_id":49083455406336,"sku":"ET353ND-2.5G","price":27.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/PR3437BI9455_1169_EPO_TEK_r__353ND_High_Temperature_Epoxy_Heat_Cure_2_5g_IMD_a39989b8-6644-412c-9c27-84c438ee8717.webp?v=1785199877","url":"https:\/\/alotechparts.com\/products\/epo-tek-353nd-high-temperature-epoxy-heat-cure-25g","provider":"Alo Tech Solutions","version":"1.0","type":"link"}