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

Dow DOWSIL HC 1100 Silicone Compound

Dow DOWSIL HC 1100 is a high-conductivity silicone compound from Dow’s DOWSIL thermal interface materials series, engineered for efficient heat dissipation in power electronics and EV battery systems. It offers excellent thermal conductivity (~1.5 W/mK), low compression set, and stable performance across wide temperature ranges.
  • dow dowsil hc 1100 silicone compound_3973ccac
  • dow dowsil hc 1100 silicone compound_3973ccac

Features Of Dow DOWSIL HC 1100 Silicone Compound

  1. High thermal stability for continuous service up to 200 °C.

  2. Excellent electrical insulation properties with low dielectric loss.

  3. Good adhesion to metals, plastics, and cured silicone substrates without primer.

  4. Low compression set and outstanding resilience after prolonged thermal aging.

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

Typical Applications Of Dow DOWSIL HC 1100 Silicone Compound

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

  2. Dielectric encapsulation and potting of high-voltage transformers and inverters.

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

  4. Sealing and bonding in automotive under-hood power control units (PCUs).

  5. Protective coating for sensors and connectors exposed to extreme temperature cycling.

Specifications Of Dow DOWSIL HC 1100 Silicone Compound

Chemical TypeHeat-curable addition-cure silicone elastomer
Product FormPaste (two-component, Part A + Part B)
AppearanceOff-white to light gray homogeneous paste
Primary ApplicationsThermal management, electrical insulation, and structural bonding
Key FeaturesFlame retardant, low outgassing, non-corrosive cure chemistry
BenefitsLong-term reliability under thermal shock and humidity stress
Cure SystemPt-catalyzed hydrosilylation (inhibitor-modulated)
Storage Stability12 months at ≤25 °C (unopened, original packaging)


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