H.B. Fuller FH8050

H.B. Fuller FH8050 is an electrically insulating, one-component epoxy encapsulant and bonding material. It is specifically designed to cure during lead-free solder reflow while allowing self-alignment of IC components. This corner bonding material improves the mechanical reliability of hand-held devices.

Chemical FamilyEpoxides

Product Type1K (1 component) Adhesive, Encapsulant, Epoxy Adhesive

Application AreaPrinted Circuit Boards

Compatible Substrates & SurfacesMetal, Plastics

FeaturesElectrically Insulating

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Ready-to-Use Product Features
Features and Benefits
  • One-component
  • Designed for automated dispense systems
  • Low extractable chlorine
  • Outstanding adhesion to most plastics and metals
  • No impact self-alignment during lead-free soldering process

Applications & Uses

Application Area
Compatible Substrates & Surfaces

Methyl ethyl ketone, iso-propanol and denatured alcohol may be used in any cleanup of uncured FH8050. A blend of solvents will perform better than simple solvents.


Electrical Properties
ValueUnitsTest Method / Conditions
Surface Resistivity3.1 x 10¹⁶ohm
Volume Resistivity3 x 10¹⁵Ω.cm
Dielectric Constant (at 1MHZ)3.5
Dissipation Factor (at 1MHz)0.017
Cured Properties
ValueUnitsTest Method / Conditions
Hardness92.0Shore D
Glass Transition Temperature115.0°C
Uncured Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.18
Solid Content100.0%
Thixotropic Index6.2
Typical Cured Properties
ValueUnitsTest Method / Conditions
Coefficient of Thermal Expansion (Alpha 1)81.0m/m.°C
Pot Life8.0h

Technical Details & Test Data

Curing Profile
  • Lead-free reflow with 260°C

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Europe (Excluding Russia)
  • India
  • Latin America
  • Middle East
  • North America

Storage & Handling

Shelf Life
1 Year
Storage Conditions

FH8050 should be stored in a cool, dry place. Shelf life is a minimum of six months in unopened containers when stored at 25°C, or 1 year at 10 °C.