LOCTITE ECCOBOND FP4450

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 FP4450

Main features

  • Fill Encapsulant
  • High purity
  • Good moisture resistance

Product Description

This product has been discontinued, replacements are FP4450HF & FP4470

LOCTITE® ECCOBOND FP4450 Fill encapsulant is designed for protection of bare semiconductor devices. It offers great chemical resistance and pressure pot performance on live devices up to 500 hours with no failures, depending upon the device and package type. A cavity or potting dam is required for flow control.

LOCTITE® ECCOBOND FP4450 is the standard, tried and proven oven cure product with high reliability and hundreds of customers using it. It has lower flow then the FP4450HF (120 vs 25um max filler size) but it does the job great and with a much lower price. 

Recommended Cure Schedule
  • 30 minutes @ 125°C plus
  • 90 minutes @ 165°C

Technical Specifications

General Properties
Filler Content Filler Content
73 %
Pot Life Pot Life
72 hours
Specific Gravity Specific Gravity
1.77
Thermal Properties
Glass Transition Temperature (Tg) Glass Transition Temperature (Tg)
155 °C
Specific Heat Capacity Specific Heat Capacity
1105 J/(g⋅°C)
Thermal Conductivity Thermal Conductivity
0.63 W/m.K
Other Properties
MSL Level MSL Level
MSL 3
Chemical Properties
Water Absorption Water Absorption
0.8 %
Physical Properties
Viscosity Viscosity
43,900 mPa.s

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