LOCTITE® ECCOBOND E 1216M

Features and Benefits

This fast-flowing and void-free epoxy underfill has excellent adhesion and strength for high-volume assembly operations.
LOCTITE® ECCOBOND E 1216M is a black, epoxy-based composite underfill, which can handle high-volume assembly operations where fast-flow filling is required. It cures entirely in a single reflow cycle but is stable enough to be easily shipped and used in large-volume cartridges (up to 0.59 ml / 20 oz). Specifically formulated to eliminate anhydride-type curing agents.
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Technical Information

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