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This is a two-part, smooth, dark grey paste that cures to form a hard, durable polymer that is extremely thermally conductive, yet electrically insulating. It is filled with thermally conductive ceramic powders for excellent thermal conductivity. It bonds well to metals, ceramics, glass, and most plastics used in electronic assemblies.

It has a convenient 1-to-1 mix ratio and a 4 hours working life. With this long work life, the mixed adhesive can essentially act like a one-part adhesive for the duration of a work shift. Unlike one-part adhesives, however, it does not require high curing temperatures or frozen storage, and it has a very long shelf life.

This product comes packaged in a 25 mL manual dual syringe or a 50 mL industrial, dual-cartridge for use with a dispensing gun and static mixing tips.

Dispensing Gun 8DG-50-1-1 sold seperately

Additional static mixers 8MT-25 or 8MT-50 sold seperately for 8329TFM-50ML only

Applications & Usages

The 8329TFS epoxy is used for bonding heat sinks, LED’s, and other heat generating components in electronic assemblies. It is suitable for use in manufacturing operations including automatic dispensing applications. It is also useful in maintenance, repair, and hobbyist sectors. Use it when a flowable adhesive with excellent thermal conductivity and a long working life is required.


  • Thermal conductivity: 1.22 W/(m·K)
  • 1:1 mix ratio
  • Working life: 4 hours
  • Cure time: 80 minutes at 80 °C or 96 hours at room temperature
  • Good adhesive strength
  • Strong water and chemical resistance to brine, acids, bases, and aliphatic hydrocarbons
  • Suitable for automatic dispensing
  • Stores and ships at room temperature
Catalog Number Size Format
8329TFS-25ML 25 mL (0.8 fl oz) Dual Cartridge
8329TFS-50ML 50 mL (1.6 fl oz) Dual Cartridge

Safety Data Sheet
Technical Data Sheet