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

Wacker SEMICOSIL 970 TC A B Two-Component Silicone Rubber

Wacker SEMICOSIL 970 TC A/B is a two-component addition-cure silicone rubber offering excellent thermal conductivity (1.5 W/mK), low viscosity, and high elasticity for demanding electronic encapsulation and potting applications.
  • wacker semicosil 970 tc a b two component silicone rubber_2b6d10d3
  • wacker semicosil 970 tc a b two component silicone rubber_2b6d10d3

Features Of Wacker SEMICOSIL 970 TC A B Two-Component Silicone Rubber

  1. High thermal conductivity (1.5 W/m·K) for efficient heat dissipation in electronic assemblies.

  2. Excellent electrical insulation properties combined with low compression set after prolonged thermal cycling.

  3. Platinum-catalyzed, addition-cure chemistry enabling precise control over pot life and cure speed.

  4. Low viscosity before curing ensures excellent flow and gap-filling capability in complex geometries.

  5. UL 94 V-0 rated after full cure, supporting compliance in safety-critical applications.

Typical Applications Of Wacker SEMICOSIL 970 TC A B Two-Component Silicone Rubber

  1. Thermal interface material (TIM) for power electronics, including IGBT modules and EV inverters.

  2. Encapsulation and potting of high-power LED drivers and automotive control units.

  3. Gap-filling adhesive for battery module thermal management systems.

  4. Die-attach and underfill solutions in semiconductor packaging requiring stable thermal performance.

  5. Thermally conductive gasketing for server and data center cooling assemblies.

Specifications Of Wacker SEMICOSIL 970 TC A B Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
AppearanceOpaque gray paste (Part A), translucent gray paste (Part B)
Primary ApplicationsThermal interface materials, encapsulation, gap filling
Key FeaturesHigh thermal conductivity, low compression set, flame retardant
BenefitsEnhanced reliability under thermal cycling, no by-products during cure, excellent adhesion to metals and plastics
Cure Temperature RangeRoom temperature to 150 °C (accelerated cure at elevated temperatures)
Shelf Life (unopened, 25 °C)12 months for Part A; 9 months for Part B


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