World class silicones for worldwide solutions

Thermal Transfer


Thermally Conductive Silicones

Why should you use Thermally Conductive silicones in electronics?

Most electronic components produce heat when in use. This unwanted heat must be dissipated away from the components to maintain performance and avoid premature failure of the components or device. The need for efficient transfer of heat has become a key design requirement as components continue to reduce in size and increase in power, this is particularly apparent with microchip processors, LEDs and power packs.

Designs will vary but in essence all involve some form of heat sink to dissipate the heat away from the active components. It is the interface between the heat sink and component that calls for the use of thermal transfer compounds - without their use any air gaps that exist will act as an insulator and prevent heat escaping.

These transfer materials come in a wide variety of forms - liquid adhesives, pastes, gels, potting compounds, sheets, rolls, pads and sprays. They also utilise an equally large array of chemistries.

The choice of material will be driven by a combination of factors including:

  • Thermal requirements
  • Manufacturing processes
  • Environmental operating conditions
  • Need for additional functionality

Silicone Based Thermal Transfer Materials

Thermally conductive silicone elastomers can be formulated as both RTV and heat cured adhesives, encapsulants and non-setting compounds.

Download our SILCOTHERM® brochure and product charts.

Electric Vehicles

With the rapid rise in the number electric vehicles being developed and manufacturered thermally conductive silicones are becoming particularly important in the automotive industry. For further information download our Electric Vehicles brochure and guide to Thermal Transfer Silicones for Automotive Applications.

Product Description Features
AS1402 1 Part heat cured silicone adhesive sealant paste Fast cure with heat
AS1404 1 Part heat cured silicone adhesive sealant paste Fast cure with heat
AS1420 SILCOTHERM 1 Part flowable heat cured silicone adhesive sealant Fast cure with heat
AS1421 SILCOTHERM 1 Part flowable heat cured silicone adhesive sealant UL94V0 approved file Number E334038
AS1701 1 Part RTV silicone adhesive sealant paste non corrosive UL approved UL94V0 approved UL file No. E334038
AS1802 SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive Excellent thermal conductivity
AS1802BLACK SILCOTHERM 1 Part RTV silicone adhesive sealant paste UL V-0 UL94V-0 approved file no. E334038
AS1803 SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive Good thermal conductivity
AS2701 SILCOTHERM 2 Part RTV silicone adhesive sealant paste non corrosive fast cure 10 : 1 volumeteric ratio for machine or cartridge dispensing
QSil553 SILCOTHERM 2 Part Addition cure silicone encapsulant Thermally conductive
QSil573 SILCOTHERM 2 Part Addition cure silicone encapsulant Thermally Conductive
SE2003 SILCOTHERM 2 Part Addition cure silicone encapsulant Room temperature cure
SE2010 SILCOTHERM 2 Part silicone gap filler Thermally conductive
SE3000 SILCOTHERM 2 Part Addition cure silicone encapsulant Thermally conductive
EGel3100 SILCOTHERM 2 Part silicone gel Excellent thermal conductivity
SG500 SILCOTHERM silicone grease Thermally conductive
SG502 SILCOTHERM silicone grease high conductivity Excellent thermal conductivity
SE3001 Thermally conductive silicone elastomer Thermally Conductive