H.B. Fuller EV Bond 383

H.B. Fuller EV Bond 383 is a thixotropic, toughened, two-component, ambient-curing epoxy adhesive. High impact resistance, moderate cure speeds, and good peel resistance characteristics make this system suitable for assembly or sealing of reinforced composite structures, metal bonding, or other applications where a toughened epoxy adhesive is required. This system contains dyes that fluoresce brightly with exposure to UV inspection lamps (black light).

Product Type2K (2 component) Adhesive, Epoxy Adhesive, Structural Adhesive

Application AreaBatteries, Battery Packs, Electric Vehicle (EV)

Compatible Substrates & SurfacesAluminum, Metal, Steel

Chemical FamilyEpoxy & Epoxy Derivatives

FeaturesAmbient Curing, Bright Fluorescence, Good Bonding Strength, Good Elongation, Heat Resistance, High Impact Resistance, Long Open Time, Peel Resistance, Thixotropic, Toughened

Technical Data Sheet

Enhanced TDS

Identification & Functionality



Features & Benefits

Applications & Uses

Compatible Substrates & Surfaces
Mixing and Curing

Mixing and Curing Schedule


Ratio Part A Part B
By weight 100 86
By volume 1 1


The recommended cure schedule to achieve the typical properties is 5 days at 25°C/77°F. Properties will be slightly altered if exposed to elevated temperature post-cure.


Physical Properties
ValueUnitsTest Method / Conditions
Tensile Elongation (at 25°C, at break)avg. 14.3%
Glass Transition Temperature53°Cby TMA
Tensile Strength (at 25°C)4492.0psi average
Coefficient of Thermal Expansion (at 30 - 40°C)111.8ppm/°C
Component A
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)34000cPs
Weight per Gallon9.1lbs
Specific Gravity (at 25°C)1.18
Component B
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)23000cPs
Weight per Gallon8.42lbs
Specific Gravity (at 25°C)1.01
Uncured Properties
ValueUnitsTest Method / Conditions
Gel Time (at 25°C, 200g, mixed)54minutes
Tack-Free Time (Blend, 40mil layer, at 25°C)180minutes
Specific Gravity (at 25°C, blend)1.09
Color (Blend)Green
Viscosity (Blend, at 25°C)27000cPs
Weight per Gallon (Blend)8.85lbs
Typical Cured Properties
ValueUnitsTest Method / Conditions
Tensile Lap Shear (at 25°C, 5 day cure, 5mil bondline thickness, solvent wiped aluminum)2173psi
Tensile Lap Shear (at 25°C, 5 day cure, 5mil bondline thickness, scoured aluminum)2413psi
Tensile Lap Shear (at 25°C, 5 day cure at 25°C, 5mil bondline thickness, sandblasted cold rolled steel)3203psi

Safety & Health

Safety Information

Although the system contains low volatility materials, care should be taken in handling. Use adequate ventilation in the work area. These materials may cause dermatitis in susceptible individuals. Keep off skin and out of eyes. In case of accidental skin contact, wash thoroughly with soap and water. In case of eye contact, flush eyes thoroughly with water and consult a physician immediately.

Packaging & Availability

Regional Availability
  • Africa
  • Asia Pacific (Excluding Russia)
  • Europe (Excluding Russia)
  • India
  • Latin America
  • Middle East
  • North America
Typical Packaging
  • 200 mL Cartridge
  • 5 gallon Pail
  • 55 gallon Drum

Storage & Handling

Shelf Life
12 Months
Storage and Shelf Life

These materials should be stored in a dry environment within a temperature range of 16 °C to 27 °C (60 °F to 80 °F). Extremes of temperature beyond this range may result in crystallization or polymerization of the materials. Introduction of a nitrogen blanket into the containers before closing will improve the storage life of the products.