Applications

LOCTITE ECCOBOND FP4451TD

  • Item Name: LOCTITE ECCOBOND FP4451TD
  • Manufacturer: Henkel
  • Product Category: Encapsulant/Dam Material
  • Technologies: Epoxy with high silica filler (73% filler weight)
  • Applications: Damming/encapsulation for flow control barriers, typically used in BGA and IC memory cards
  • Color: Black
  • Cure Type: Heat cure
  • Package Size: Contact Avantek for details.
  • Shelf Life: Approximately 9 months (at -40°C)

1. Product Overview

LOCTITE ECCOBOND FP4451TD is a high-purity, heat-curing epoxy encapsulant designed as a damming material for bare chip encapsulation. It offers excellent chemical resistance and exceptional thermal stability.

2. Applications

  • Used as a flow control barrier for bare chip encapsulation
  • Suitable for BGA and IC memory cards

3. Typical Properties

Property Value
Uncured Properties
Viscosity (Brookfield RVF, 25°C) 300,000 mPa·s (cP)
Specific Gravity @ 25°C 1.79
Gel Time @ 121°C 13 min
Pot Life @ 25°C 10 days
Shelf Life @ -40°C 274 days
Particle Size (median/max) 20 µm / 200 µm
Curing Performance
Cure Schedule 30 min @ 125°C + 90 min @ 165°C
Cured Properties
Coefficient of Thermal Expansion (ppm/°C) 21 (below Tg) / 65 (above Tg)
Glass Transition Temperature (Tg) 150°C
Extractable Ionic Content (Cl-, Na+, K+) <10, <1, <1
Electrical Properties
Dielectric Constant @ 5 GHz 3.52
Dielectric Constant @ 50 GHz 3.50
Dissipation Factor @ 5 GHz 0.0060

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