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

Wacker SEMICOSIL 986 1K Silicone Gel

Wacker SEMICOSIL 986 1K Silicone Gel is a platinum-catalyzed, one-component, addition-cure silicone gel offering ultra-low modulus, excellent thermal stability (–40°C to 200°C), and outstanding electrical insulation. It cures at room temperature without by-products, ensuring minimal stress on sensitive electronics and ideal for LED encapsulation, sensor potting, and precision bonding applications.
  • wacker semicosil 986 1k silicone gel_ea173977
  • wacker semicosil 986 1k silicone gel_ea173977

Features Of Wacker SEMICOSIL 986 1K Silicone Gel

  1. One-component, platinum-catalyzed addition-cure silicone gel with no by-products during curing.

  2. Ultra-low modulus and exceptional conformability for stress-free encapsulation of delicate electronic components.

  3. Excellent thermal stability, operating continuously from –50 °C to +200 °C.

  4. Outstanding electrical insulation properties and low dielectric constant (≈2.7 at 1 MHz).

  5. Non-tacky surface after cure, enabling easy handling and compatibility with automated dispensing systems.

Typical Applications Of Wacker SEMICOSIL 986 1K Silicone Gel

  1. Underfill and protective coating for power electronics modules (e.g., IGBTs, SiC MOSFETs).

  2. Encapsulation of sensitive sensors, MEMS devices, and LED assemblies.

  3. Thermal interface material (TIM) in high-reliability automotive and industrial control units.

  4. Conformal protection for PCBs exposed to thermal cycling, vibration, or humidity.

  5. Die attach and stress-relief padding in optoelectronic packaging and hybrid circuits.

Specifications Of Wacker SEMICOSIL 986 1K Silicone Gel

Chemical TypePlatinum-catalyzed addition-cure silicone gel
Product FormPaste (thixotropic, pumpable)
AppearanceOpaque white to off-white viscous paste
Primary ApplicationsElectronic encapsulation, thermal management, stress relief
Key Features1K system, room-temperature or accelerated heat cure, non-corrosive
Shore A Hardness (7 days, 23 °C)≤0.2
Density (23 °C)1.15 g/cm³
Viscosity (25 °C, Brookfield LVT, Spindle #4, 12 rpm)450,000 mPa·s


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *