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

Dow DOWSIL EA 3500G Sealant Base

Dow DOWSIL EA 3500G Sealant Base is a high-performance silicone elastomer base from Dow’s DOWSIL EA series, engineered for aerospace-grade electrical insulation and thermal management. It delivers excellent dielectric strength, low outgassing, and stable properties across extreme temperatures. Compatible with platinum-cure systems, it enables custom formulation of high-reliability encapsulants and potting compounds for demanding electronic applications.
  • dow dowsil ea 3500g sealant base_2414ae61
  • dow dowsil ea 3500g sealant base_2414ae61

Features Of Dow DOWSIL EA 3500G Sealant Base

  1. High-performance silicone elastomer base designed for formulating two-component addition-cure RTV silicone sealants.

  2. Excellent thermal stability and long-term reliability across wide temperature ranges (–55 °C to +200 °C).

  3. Low viscosity for easy metering, mixing, and processing in automated dispensing systems.

  4. Superior adhesion to common substrates including metals, glass, ceramics, and engineered plastics without primers.

  5. Meets UL 94 V-0 flammability rating when formulated with appropriate curing agents.

Typical Applications Of Dow DOWSIL EA 3500G Sealant Base

  1. Automotive powertrain and EV battery module encapsulation and sealing.

  2. Industrial electronics potting and protective coating for sensors and control units.

  3. Aerospace avionics housing gasketing and environmental sealing.

  4. LED lighting assemblies requiring thermal management and ingress protection (IP67/IP68).

  5. Medical device housings where biocompatibility and sterilization resistance are critical.

Specifications Of Dow DOWSIL EA 3500G Sealant Base

Chemical TypePlatinum-catalyzed addition-cure silicone polymer base
Product FormLow-viscosity liquid
AppearanceClear to slightly hazy, colorless to pale yellow liquid
Primary ApplicationsBase component for 2K RTV silicone sealants and encapsulants
Key FeaturesThermally stable, low compression set, excellent dielectric properties
BenefitsEnables high-yield manufacturing, consistent cure performance, and long service life
Shelf Life (unopened)12 months at ≤25 °C in original sealed container
Packaging20 kg pail and 200 kg drum


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