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

Dow DOWSIL EA-3800 Silicone Adhesive

Dow DOWSIL EA-3800 Silicone Adhesive is a high-performance, one-component, moisture-curing silicone adhesive offering excellent adhesion to glass, metals, and plastics. It delivers superior UV resistance, thermal stability from −55°C to 200°C, low modulus elasticity, and outstanding electrical insulation—ideal for demanding automotive, electronics, and architectural bonding applications.
  • dow dowsil ea 3800 silicone adhesive_7d0c3ff4
  • dow dowsil ea 3800 silicone adhesive_7d0c3ff4

Features Of Dow DOWSIL EA-3800 Silicone Adhesive

  1. High-performance, one-component, moisture-curing silicone adhesive with excellent adhesion to low-surface-energy substrates including plastics and coated metals.

  2. Offers outstanding resistance to thermal cycling, UV exposure, and humidity over extended service life.

  3. Low modulus formulation provides superior flexibility and stress relief for bonded assemblies subject to vibration or thermal expansion mismatch.

  4. Non-corrosive and acetoxy-free cure chemistry ensures compatibility with sensitive electronic components and optical materials.

  5. Meets UL 94 HB flammability rating and complies with RoHS Directive 2011/65/EU for restricted substances.

Typical Applications Of Dow DOWSIL EA-3800 Silicone Adhesive

  1. LED lighting assembly — bonding lenses, housings, and heat sinks in outdoor and high-temperature luminaires.

  2. Automotive electronics — securing sensors, control units, and display modules exposed to under-hood environments.

  3. Medical device encapsulation — adhering housings and gaskets in portable diagnostic equipment requiring biocompatibility support.

  4. Industrial control panels — mounting nameplates, membranes, and interface components on painted or powder-coated enclosures.

  5. Solar photovoltaic module assembly — edge sealing and component fixation where long-term weather resistance is critical.

Specifications Of Dow DOWSIL EA-3800 Silicone Adhesive

Chemical TypeOne-part, condensation-cure, methyl vinyl silicone polymer
Product FormPaste-like, thixotropic gel in cartridge (300 mL) and bulk (200 L drum)
AppearanceOpaque white to off-white viscous paste
Primary ApplicationsStructural bonding, sealing, and potting of electronics, lighting, and transportation components
Key FeaturesLow modulus, non-corrosive cure, excellent adhesion without primer on many substrates
BenefitsReduces assembly stress, eliminates post-cure requirements, supports automated dispensing
Cure MechanismMoisture-cured at room temperature; full cure depth ~3–4 mm in 7 days at 23°C / 50% RH
Storage Stability12 months unopened at ≤25°C in original sealed packaging


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