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

Dow DOWSIL TC-5622 Silicone Rubber

Dow DOWSIL TC-5622 Silicone Rubber is a two-part, addition-cure liquid silicone elastomer offering excellent thermal conductivity (2.2 W/m·K), low viscosity for easy processing, and outstanding electrical insulation. Ideal for potting, encapsulation, and thermal interface applications in EVs and power electronics. Part of Dow’s high-performance DOWSIL TC series.
  • dow dowsil tc 5622 silicone rubber_df26b043
  • dow dowsil tc 5622 silicone rubber_df26b043

Features Of Dow DOWSIL TC-5622 Silicone Rubber

  1. High thermal conductivity (2.2 W/m·K) for efficient heat dissipation in demanding electronic applications.

  2. Excellent electrical insulation properties with high dielectric strength and low dielectric loss.

  3. Low modulus and soft consistency enabling conformal contact and stress relief on sensitive components.

  4. Room-temperature vulcanization (RTV) with rapid, one-part cure—no mixing required.

  5. UL 94 V-0 rated for flame retardancy, supporting safety-critical designs.

Typical Applications Of Dow DOWSIL TC-5622 Silicone Rubber

  1. Thermal interface material (TIM) between power semiconductors and heat sinks in EV inverters and onboard chargers.

  2. Dielectric encapsulation for high-voltage battery management systems (BMS) and DC-DC converters.

  3. Gap-filling compound for LED lighting modules requiring both thermal management and electrical isolation.

  4. Underfill and potting solution for automotive ADAS sensors and radar assemblies exposed to wide temperature swings.

Specifications Of Dow DOWSIL TC-5622 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormPaste, single-component
AppearanceOff-white, homogeneous paste
Primary ApplicationsThermal interface materials, electrical insulation, gap filling
Key FeaturesHigh thermal conductivity, RTV cure, UL 94 V-0 rated, low compression set
BenefitsReduces thermal resistance, simplifies assembly, enhances long-term reliability under thermal cycling
Cure MechanismPlatinum-catalyzed hydrosilylation at room temperature
Operating Temperature Range–40 °C to +200 °C (continuous)


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