H.B. Fuller EV Therm 288

H.B. Fuller EV Therm 288 is a silicone-free gap filler, formulated exclusively for EV battery environments. This thermal interface material cures at room temperature or is accelerated with heat and provides excellent thermal conductivity, electrical insulation, water resistance, corrosion resistance, and impact resistance properties.

Application AreaBattery Packs, Electric Vehicle (EV), Electric Vehicle (EV) Batteries

Compatible Substrates & SurfacesAluminum Alloys, Galvanized Steel, Metal

FeaturesCorrosion Resistant, Easier Processing, Electrical Insulation Properties, Fast Curing, Good Thermal Conductivity, Impact Resistance, Water Resistant


Technical Data Sheet

Enhanced TDS

Identification & Functionality

Product Type
Product Information
Technology/Base Silane-Modified Polymer
Type of Product Thermally Conductive Gap Filler
Components Two Component
Curing Polycondensation Curing
Consistency Pasty

Features & Benefits

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Application Method
  • Preparation: Processing For some substrates the use of mechanical pretreatment and/or cleaner or primer is necessary to achieve good adhesion. Refer to the product properties section of this data sheet for special surface requirements and suitable adhesion promoters.
  • Processing: Low temperatures can cause a temporary increase in viscosity resulting in reduced extrusion and slower curing rates.
  • Surface Requirements: Dry, clean, free of grease
  • Surface Cleaning: Use Körasolv GL, Körasolv PU, or Körasolv W
  • Application Method:
    • Cartridge dispenser
    • Dispensing system
  • Cleaning: Use Körasolv GL or Körasolv PU
Suitable Substrates
  • Various galvanized steels
  • Metals
  • Various aluminum alloys
  • Various steel alloys
  • Various other substrates


Physical Form
Component A
ValueUnitsTest Method / Conditions
Density2.1g/cm³DIN EN 542
Physical Properties
ValueUnitsTest Method / Conditions
Thermal Conductivity2.1W/m-KASTM D5460-12
Dielectric Strengthmin. 10kV/mmASTM D149
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (at 1/s)550Pas
Viscosity (at 10/s)190Pas
Operating Temperature Range-40 - 80°C
Cured Properties
ValueUnitsTest Method / Conditions
Hardness81Shore 00
Tensile Strength0.2MPaDIN EN ISO 527
Elongation at Break35.0%DIN EN ISO 527
Tear Strength1.0N/mmDIN ISO 34-1 Type C
Processing Parameters
ValueUnitsTest Method / Conditions
Mixing Ratio (by volume, Component A:Component B)1:1
Mixing Ratio (by weight, Component A:Component B)1:1
Pot Life3.0hours
Processing Temperature-40 - 80°C

Packaging & Availability

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

The preferred packaging for sampling is a tandem cartridge 2x200 ml
5 gal Pails

Storage & Handling

Shelf Life
6 Months
Storage & Handling Information
  • EV Therm 288 should be used within the shelf life specified on the packaging. The storage stability only applies to material stored under appropriate conditions (original unopened containers, recommended storage temperature). Store under 5°C to 25°C. The shelf life is 6 months.
  • Clean tools immediately after use. Once cured, the material can only be removed mechanically. Appropriate cleaners are listed in the product properties table.