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

Dow DOWSIL EA-9189 RTV Silicone

Dow DOWSIL EA-9189 RTV Silicone is a high-performance, two-part addition-cure silicone adhesive/sealant offering exceptional thermal stability, low outgassing, and strong adhesion to metals, plastics, and ceramics. Ideal for aerospace, electronics, and optical bonding where reliability under extreme conditions is critical.
  • dow dowsil ea 9189 rtv silicone_2efc1db0
  • dow dowsil ea 9189 rtv silicone_2efc1db0

Features Of Dow DOWSIL EA-9189 RTV Silicone

  1. High-performance, two-part addition-cure silicone elastomer offering excellent thermal stability and low compression set.

  2. Exceptional adhesion to diverse substrates including metals, plastics, and glass without primers.

  3. Low viscosity before cure enables precise dispensing and excellent flow for complex geometries and gap filling.

  4. UL 94 V-0 rated for flame resistance, supporting safety-critical electronic encapsulation requirements.

  5. Excellent electrical insulation properties with stable dielectric strength over wide temperature and humidity ranges.

Typical Applications Of Dow DOWSIL EA-9189 RTV Silicone

  1. Encapsulation and potting of power electronics, including IGBT modules and EV inverters.

  2. Thermal interface material (TIM) bonding and stress-relieving underfill for high-power LED assemblies.

  3. Sealing and protective coating for automotive sensors exposed to under-hood thermal cycling.

  4. Die-attach and structural bonding in aerospace avionics housings requiring outgassing compliance.

Specifications Of Dow DOWSIL EA-9189 RTV Silicone

Chemical TypePlatinum-catalyzed addition-cure silicone elastomer
Product FormTwo-component liquid (Part A + Part B)
AppearancePale amber, translucent liquids (Part A and Part B)
Primary ApplicationsEncapsulation, potting, bonding, and thermal management in electronics
Key FeaturesLow compression set, UL 94 V-0, primerless adhesion, thermal stability to 200 °C
BenefitsLong-term reliability under thermal cycling, reduced assembly steps, improved moisture resistance
Cure SystemAddition cure (no by-products)
Shelf Life (unopened, 25 °C)12 months from date of manufacture


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *