Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker SEMICOSIL 970 TC Silicone Gel

Wacker SEMICOSIL 970 TC is a thermally conductive silicone gel designed for gap-filling and heat dissipation in electronics. It offers ultra-low compression force, excellent thixotropy, and long-term stability under thermal cycling. The platinum-cured formulation ensures low volatility and high reliability. Ideal for CPU/GPU interfaces, power modules, and EV battery systems requiring efficient thermal management.
  • wacker semicosil 970 tc silicone gel_a738985b
  • wacker semicosil 970 tc silicone gel_a738985b

Features Of Wacker SEMICOSIL 970 TC Silicone Gel

  1. Ultra-low modulus silicone gel formulation for minimal mechanical stress on sensitive electronic components.

  2. Excellent thermal conductivity (1.5 W/m·K) enabling efficient heat dissipation in power electronics.

  3. Self-adhesive without primer — bonds reliably to plastics, metals, and PCB substrates.

  4. UL 94 V-0 rated for flame retardancy, meeting stringent safety requirements in enclosed assemblies.

  5. Long-term stability under thermal cycling (-40 °C to +150 °C) with no pump-out or cracking.

Typical Applications Of Wacker SEMICOSIL 970 TC Silicone Gel

  1. Thermal interface material (TIM) between IGBT modules and heat sinks in inverters and EV powertrains.

  2. Underfill and stress-relief encapsulation for high-power LED packages and driver circuits.

  3. Die-attach and gap-filling in automotive ADAS radar and sensor housings.

  4. Thermal management layer in renewable energy converters (solar inverters, wind turbine controllers).

Specifications Of Wacker SEMICOSIL 970 TC Silicone Gel

Chemical TypePlatinum-cured addition-cure silicone gel
Product FormTwo-component liquid (Part A + Part B), mix ratio 1:1 by weight
AppearanceTranslucent, low-viscosity paste
Primary ApplicationsThermal interface material (TIM), stress-relief encapsulation, die attach
Key FeaturesLow modulus, self-adhesive, flame-retardant (UL 94 V-0), reworkable
Shore A Hardness (cured)5–10
Thermal Conductivity1.5 W/m·K
Operating Temperature Range-40 °C to +150 °C (continuous)


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