H.B. Fuller EA6405

H.B. Fuller EA6405 is a one-component adhesive that can be cured by UV irradiation followed by thermal cure. It has fast UV curing and low-temperature heat curing with outstanding bond strength to PC substrates. This material is designed for structural bonding and has superior adhesion to a wide range of substrates, including plastics and metals such as PC, PMMA, aluminum, stainless steel, and other polar substrates.

Product Type1K (1 component) Adhesive, Radiation Curable Adhesive

Compatible Substrates & SurfacesAluminum, Metal, Plastics, Poly(Methyl Methacrylate) (PMMA), Polycarbonate (PC), Stainless Steel

Chemical FamilyAcrylics & Acrylates

FeaturesExcellent Substrate Adhesion, Fast Curing, Good Thermal Stability, High Glass Transition Temperature, Low Shrinkage, Low Temperature Curing, UV Curable

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Features and Benefits
  • One component; requires no mixing
  • High thixo index for high aspect ratio dispensing
  • Fast curing by UV irradiation
  • Low-temprerature thermal cure
  • High Tg for high temp. reliability
  • Excellent adhesion to plastics and metals
  • Excellent thermal stability

Applications & Uses

Cure Method


Physical Form
Uncured Properties
ValueUnitsTest Method / Conditions
Viscosity (25°C, 2 S⁻¹)520000.0cP
Viscosity (25°C, 20 S⁻¹)48000.0cP
Thixotropic Index10.8
Dispense Aspect Ratio0.9 - 1.0
Work Life48.0h
Typical Performance Properties
ValueUnitsTest Method / Conditions
Glass Transition Temperature90.0°CDMA
Co-efficient of Thermal Expansion (Alpha 1)41.0ppm/°CTMA
Co-efficient of Thermal Expansion (Alpha 2)124.0ppm/°CTMA
Storage Modulus (at 25°C, 1 Hz)3.2GPaDMA
Die Shear Strength (Polycarbonate die on PBT substrate)10.2MPaRoom Temp
Cure Shrinkage (Linear)0.5%

Technical Details & Test Data

Recommended Cure
  • UV cure: 2 to 5 sec at 200 - 400 mW/cm2 (365 nm)
  • Thermal cure: 60 oC for 3 hours

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Europe (Excluding Russia)
  • India
  • Latin America
  • Middle East
  • North America
Available Packaging
  • 3cc, 5cc, 10cc and 30cc amber or black syringes

Storage & Handling

Shelf Life
6 Months
Storage Conditions

EA6405 should be sealed and stored in the original container at -40 °C.
Shelf life of material is 6 months from date of manufacture.