LOCTITE ECCOBOND FP4526

Harmonization Code : 3907.30.00.85 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other

LOCTITE ECCOBOND FP4526

Main features

  • Low viscosity
  • Excellent wettability
  • Hi-Pb and Pb-free applications

Product Description

LOCTITE® ECCOBOND FP4526 epoxy underfill is designed for capillary flow on flip chip applications. It's fast flow and low viscosity along with its excellent wettability and adhesion make it ideal for high reliability applications.

LOCTITE® ECCOBOND FP4526 is a heat curable 63% filled underfill that can be used on ceramic, organic, solder mask and polyimide substrates and is typically used for Ceramic packages and FC on flex applications.

Cure Schedule

  • 15 minutes @ 165°C(Heat sink or hot plate cure)
  • 30 minutes @ 165°C (Convection oven)
Product Family

FP4526

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TDS, SDS & Technical Documents
  • LOCTITE ECCOBOND FP4526
    English (Technical Data Sheet (TDS))
  • LOCTITE ECCOBOND FP4526
    English (Safety Data Sheet (SDS))

Technical Specifications

General Properties
Pot Life Pot Life
36 hours
Specific Gravity Specific Gravity
1.7
Thermal Properties
Glass Transition Temperature (Tg) Glass Transition Temperature (Tg)
133 °C
Physical Properties
Viscosity Viscosity
4,700 mPa.s

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