SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Fast cure (2 component room temperature curable) thermally conductive potting
material

TIA208R has the unique benefit of providing primerless adhesion when cured at both elevated heat or at room temperature, to not only metallic substrates, but to also difficult to adhere plastics such as Polycarbonate.

TIA208R’s adhesion capabilities are especially important for electronic potting applications that require IP standard water ingress performance

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant
 
 
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Key Features

  • Primerless adhesion to metals and plastics
  • Good thermal conductivity (0.7 W/m∙K)
  • Easy to use 1:1 mixing ratio
  • Cures and adheres quickly with heat or at room temperature
  • Flame retardant : UL94V-0
  • UL RTI : 150°C
  • UL Rated

Applications

  • LED Ballasts
  • DC / DC Converters
  • Micro-Inverters
  • Automotive Electric Vehicles
  • Water ingress resistant electronic potting

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Potting in LED Light Bulbs

  • 2 identical E26 lightbulbs with thermocouple attached to capacitor.
  • One potted with TIA208R the other Unpotted
  • Turn the bulbs on and measured operating temperature with ambient temperature 24.5°C

TIA208R resulted in a 16 % reduction in operating temperature

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Curing Behaviour

  • Although curing is possible at various temperatures, higher temperatures result in higher hardness and adhesion strength build.
  • Even when cured in ovens for 30 min, there is a gradual increase in hardness and adhesion strength that continues for approximately 7 days.

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Temperature and Viscosity Relationship

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Stable properties under harsh operating conditions

TIA208R, SilCool* TIA208R Thermally Conductive Silicone Encapsulant

Categories: Momentive SilCool™ Thermal Management
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