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 Type: 2K (2 component) Adhesive, Epoxy Adhesive, Structural Adhesive

Application Area: Batteries, Battery Packs, Electric Vehicle (EV)

Compatible Substrates & Surfaces: Aluminum, Metal, Steel

Chemical Family: Epoxy & Epoxy Derivatives

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

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application Area
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

Packaging Type
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.