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Adhesives with Thermal Conductivity for Applications on PCBs

Adhesives with thermal conductivity are often used to dissipate heat from power electronics. Used to bond heat sinks, for example, their heat conductivity reduces thermal strain to prevent performance loss or failure of electronic components.

The thermally conductive adhesives are synthetic resins augmented with metallic or inorganic filler materials. The best thermal conduction coefficients can be achieved with metallic fillers such as silver or graphite. These, however, also make the adhesive electrically conductive, which is undesirable in many applications. To achieve thermal conductivity and electrical isolation at the same time, adhesives augmented with ceramic or mineral-based fillers must be used.

Compared to heat transfer compounds, thermally conductive adhesives have the advantage of securing components in addition to dissipating thermal energy.

Panacol offers a wide selection of thermally conductive adhesives: The spectrum ranges from epoxy resin-based single- and two-component adhesives of its Elecolit® adhesives, which are thermally curing and have a high temperature resistance of up to 200°C, to acrylate-based UV-curing adhesives of the Vitralit® series.

The table below lists a selection of heat-conductive adhesives from Panacol. Further products and custom solutions are available on request.


Adhesive with thermal conductivity is used for bonding heat sinks in the electronics industry
Heat conductive glue for applications on PCB

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Heat-conductive adhesive Application Viscosity [mPas] Base Curing*Properties
Elecolit® 6601 heat sink bonding
sensor bonding
12,000–20,000 epoxy thermalthermally conductive adhesive
Elecolit® 6603 magnet bonding
heat sink bonding
95,000–115,000 epoxy thermalthermally conductive adhesive
Elecolit® 6604 sensor bonding 110,000–140,000 epoxy thermalthermally conductive adhesive
Elecolit® 6616 sealant paste-like 2 component epoxy thermalthermally conductive adhesive
Elecolit® 6207 encapsulation
sealing compound
9,000-12,000 2 component epoxy thermalthermally conductive adhesive
Vitralit® 6137 various applications for electronics and PCB assembly 150,000-170,000 acrylate UV
thermal
thermally conductive adhesive
Vitralit® 6129 various applications for electronics and PCB assembly 30,000-40,000 acrylate UV
thermal
thermally conductive adhesive

*UV = 320 - 390 nm