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

Dow DOWSIL EA-3800 Adhesive

Dow DOWSIL EA-3800 Adhesive is a high-performance silicone-based structural adhesive engineered for demanding industrial bonding. It delivers exceptional adhesion to metals, plastics, and composites, with outstanding thermal stability, flexibility, and resistance to environmental stress. Fast room-temperature cure, low shrinkage, and excellent electrical insulation make it ideal for automotive, aerospace, and electronics applications.
  • dow dowsil ea 3800 adhesive_d5e3d7c6
  • dow dowsil ea 3800 adhesive_d5e3d7c6

Features Of Dow DOWSIL EA-3800 Adhesive

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

  2. Low modulus formulation provides superior stress relief for dissimilar substrates and thermal cycling environments.

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

  4. Excellent adhesion to metals, plastics, ceramics, and coated surfaces without primers.

  5. Low outgassing and high purity—qualified for aerospace and medical device assembly applications.

Typical Applications Of Dow DOWSIL EA-3800 Adhesive

  1. Encapsulation and bonding of power electronics modules including IGBTs and inverters.

  2. Structural bonding in LED lighting assemblies exposed to elevated operating temperatures.

  3. Attachment of sensors and control units in automotive under-hood environments.

  4. Die attach and housing sealing for aerospace avionics and satellite components.

  5. Medical device assembly requiring biocompatibility support and ISO 10993 compatibility documentation.

Specifications Of Dow DOWSIL EA-3800 Adhesive

Chemical TypePlatinum-catalyzed addition-cure silicone
Product FormTwo-component liquid (Part A: base; Part B: catalyst)
AppearancePart A: translucent viscous liquid; Part B: translucent low-viscosity liquid
Mix Ratio by Weight10:1 (A:B)
Cure Schedule (Typical)2 hours at 100°C or 24 hours at 25°C
Shore A Hardness (Cured)35–45
Volume Resistivity (ASTM D257)>1 × 10¹⁵ Ω·cm
UL RecognitionUL 94 V-0, UL 746C, and CSA C22.2 No. 0.3


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