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

Dow DOWSIL EG-4000 Kit

Dow DOWSIL EG-4000 Kit is a two-component silicone elastomer system from Dow’s DOWSIL™ portfolio offering excellent flexibility thermal stability and low compression set ideal for demanding sealing gasketing and potting applications across automotive electronics and industrial markets.
  • dow dowsil eg 4000 kit_e61b2fbb
  • dow dowsil eg 4000 kit_e61b2fbb

Features Of Dow DOWSIL EG-4000 Kit

  1. Two-component, addition-cure silicone elastomer system offering excellent thermal stability and long-term reliability.

  2. Low viscosity before cure enables easy mixing, degassing, and precise dispensing into complex geometries.

  3. UL 94 V-0 rated after full cure, supporting stringent flame-retardant requirements in electronic encapsulation.

  4. Outstanding electrical insulation properties with low dielectric constant and dissipation factor across wide temperature and frequency ranges.

  5. Minimal shrinkage and excellent adhesion to common substrates including plastics, metals, and PCB laminates without primers.

Typical Applications Of Dow DOWSIL EG-4000 Kit

  1. Encapsulation of power electronics, such as IGBT modules and inverters for electric vehicles and renewable energy systems.

  2. Protective potting of high-voltage sensors and battery management system (BMS) components.

  3. Dielectric insulation for LED drivers and solid-state relays operating under thermal cycling stress.

  4. Sealing and bonding of medical device housings requiring biocompatibility-compliant silicone chemistry.

  5. Thermal interface material (TIM) alternative for low-stress, conformal heat dissipation in compact power converters.

Specifications Of Dow DOWSIL EG-4000 Kit

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-component liquid kit (Part A + Part B)
Appearance (Uncured)Part A: Translucent, low-viscosity liquid; Part B: Translucent, low-viscosity liquid
Primary ApplicationsElectrical encapsulation, thermal management, and environmental protection of power electronics
Key FeaturesUL 94 V-0 rating, low ionic content, thermal stability up to 200 °C continuous use
BenefitsReduced outgassing, minimal stress on sensitive components, no by-products during cure
Cure SystemAddition cure (hydrosilylation), room-temperature or elevated-temperature accelerated
Shelf Life12 months at 25 °C in unopened original packaging


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