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      A packshot of LOCTITE ECCOBOND E 1216M, a black material in 3 different sizes showing a 55CC syringe, a 30CC syringe, and a 10CC syringe.

      Underfills

      LOCTITE® ECCOBOND E 1216M

      One-part, capillary-flow epoxy underfill for high volume operations

      Fast-flowing and void-free epoxy underfill with excellent adhesion and strength for high-volume assembly operations.

      All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.

      Part no. (SKU/IDH)
      1636425

      LOCTITE® ECCOBOND E 1216M, 30 ml Syringe

      Documents

      Technical (1)

      RoHS (1)

      Regulatory (1)

      Information

      If you’re looking for an underfill that can handle high-volume assembly operations where fast-flow filling is required, LOCTITE® ECCOBOND E 1216M is a great pick. Our ECCOBOND E 1216M composite cures entirely in a single reflow cycle but is stable enough to be easily shipped and used in large-volume cartridges (up to 20oz). This black, epoxy-based underfill is ideal for those who prefer to work with anhydride-free products, as it’s specifically formulated to eliminate anhydride-type curing agents.
      • Void-free
      • Retains stability during shipping, storage, and use
      • Snap-curing
      • High glass transition temperature (Tg)

      Coefficient of thermal expansion (CTE), Above Tg:

      131.0 ppm/°C

      Coefficient of thermal expansion (CTE), Below Tg:

      35.0 ppm/°C

      Glass transition temperature (Tg):

      125.0 °C

      Viscosity, Brookfield, Spindle 4, speed 20 rpm:

      4000.0 mPa·s (cP)

      Work life:

      5.0 day

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