H.B. Fuller FH8805

H.B. Fuller FH8805 is a single-component adhesive that cures by heat. It has fast curing at low temperatures and outstanding bond strength. This material is recommended for use with chip bonding in microelectronic, MEMS, and opto-electronic applications. This material is able to snap-cure during in-line production.

Product Type1K (1 component) Adhesive, Reactive Adhesive

Application AreaDie/Chip Attach, Microelectromechanical Systems (MEMS) Applications, Optoelectronics Devices

Application MethodInjection

Chemical FamilyAcrylics & Acrylates

FeaturesFast Curing, Good Bonding Strength, Good Thermal Stability, High Consistency, Low Outgassing, Low Stress, Low Temperature Curing, Thixotropic

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Features and Benefits
  • One component requires no mixing
  • Fast curing
  • High bond strength on a variety of substrates
  • Suitable for fine pattern dispensing
  • Excellent thermal performance
  • Low outgassing
  • High thermal stability
  • Low Stress
  • Design for high speed dispensing

Applications & Uses

Application Method
Cure Method


Physical Form
Uncured Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25 °C)16500.0mPa.s
Thixotropic Index5.3
Pot Life24.0h
Typical Performance Properties
ValueUnitsTest Method / Conditions
Glass Transition Temperature53.0°C
Co-efficient of Thermal Expansion (Alpha 1)67.0ppm/°CTMA
Co-efficient of Thermal Expansion (Alpha 2)172.0ppm/°CTMA
Storage Modulus (at 25°C)2.7GPa
Die Shear Strength (2x2mm silicon die, solder mask FR4)30.0kgf
Die Shear Strength (2x2mm silicon die, solder mask FR4, 3X Pb fee reflow)58.0kgf
Elastic Modulus (25°C, 50% RH)340.0MPa
Tensile Strength (at 25°C, 50% RH)23.0MPa
Elongation (at 25°C, 50% RH)8.5%

Technical Details & Test Data

Recommended Cure
  • 110°C for 90 seconds

Packaging & Availability

Available Packaging
  • 5cc, 10cc, and 30cc syringes

Storage & Handling

Shelf Life
12 Months
Storage Conditions

FH8805 should be sealed and stored in the original container at -40 °C.