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

Dow SYLGARD 3-6636 Silicone Dielectric Gel

Dow SYLGARD 3-6636 Silicone Dielectric Gel is a low-viscosity, platinum-cured silicone gel offering exceptional thermal stability, electrical insulation, and conformal protection for sensitive electronics. It remains stable from –55°C to 200°C, resists moisture and aging, and enables stress-free encapsulation of LEDs, sensors, and power modules without outgassing or shrinkage.
  • dow sylgard 3 6636 silicone dielectric gel_6ffb57b4
  • dow sylgard 3 6636 silicone dielectric gel_6ffb57b4

Features Of Dow SYLGARD 3-6636 Silicone Dielectric Gel

  1. Ultra-low modulus formulation enables gentle stress relief for sensitive electronic components.

  2. Excellent dielectric stability across wide temperature range (–40 °C to +200 °C).

  3. Non-corrosive, platinum-catalyzed silicone chemistry ensures long-term material compatibility.

  4. Thixotropic behavior provides easy dispensing and prevents slumping during cure.

  5. UL 94 V-0 rated for flame resistance in demanding electronic encapsulation applications.

Typical Applications Of Dow SYLGARD 3-6636 Silicone Dielectric Gel

  1. Thermal interface material (TIM) for power electronics and IGBT modules.

  2. Dielectric encapsulation of high-voltage sensors and battery management systems (BMS).

  3. Void-filling gel for LED lighting assemblies requiring electrical isolation and thermal management.

  4. Protection layer for automotive ADAS radar and camera modules exposed to thermal cycling.

  5. Conformal coating alternative for flexible printed circuits (FPCs) in wearable and medical devices.

Specifications Of Dow SYLGARD 3-6636 Silicone Dielectric Gel

Chemical TypePlatinum-catalyzed addition-cure silicone
Product FormPaste (two-component, Part A + Part B)
AppearanceOpaque white gel
Primary ApplicationsDielectric encapsulation, thermal interface, stress-relieving potting
Key FeaturesLow modulus, non-slumping, UL 94 V-0, RoHS compliant
Shore A Hardness (7 days, 25 °C)10–15
Density (g/cm³)1.15–1.20
Dielectric Strength (kV/mm)≥20


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