Henkel Loctite® ECCOBOND FP4526 Epoxy

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Henkel Loctite® ECCOBOND FP4526 Epoxy
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Appearance: blue Cure: Heat Cure Product Benefits: Low viscosity Fast flow Excellent wettability Excellent adhesion Ideal for high reliability applications Hi-Pb and Pb-free applications Application: Underfill Substrates Ceramic, Organic, Solder mask and Polyimide Typical Package Application: Ceramic packages and FC on flex LOCTITE ECCOBOND FP4526 epoxy underfill is designed for capillary flow on flip chip applications. Information provided by Loctite®
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Physical Properties	Original Value	Comments

Specific Gravity	1.70 g/cc
Filler Content	63 %
Particle Size	<= 27 µm
Brookfield Viscosity	4700 cP	Cone & Plate, Spindle 52, speed 10 rpm

Mechanical Properties	Original Value	Comments
Flexural Modulus	8500 MPa	Cured

Thermal Properties	Original Value	Comments
CTE, linear	33.0 µm/m-°C @Temperature 40.0 - 90.0 °C	Cured, Below Tg
	101 µm/m-°C @Temperature 190 - 220 °C	Cured, Above Tg
Glass Transition Temp, Tg	133 °C	Cured, by TMA

Processing Properties	Original Value	Comments
Cure Time	15.0 min @Temperature 165 °C	Heat Sink or Hot Plate
	30.0 min @Temperature 165 °C	Alternate Cure Schedule, Convection oven
Gel Time	9.00 min @Temperature 121 °C
Shelf Life	9.00 Month @Temperature -10.0 °C

Descriptive Properties
Extractable Ionic Content (ppm)	10	Cured, Sodium (Na+)
	25	Cured, Chloride (Cl-)
Pot Life	36 hrs

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PLOCT5082 / 255293

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