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

Dow DOWSIL 7646 Adhesive

Dow DOWSIL 7646 Adhesive is a high-performance silicone-based structural adhesive from Dow’s DOWSIL series. It offers excellent adhesion to glass, aluminum, and plastics, fast room-temperature cure, UV resistance, and low VOC emissions—ideal for architectural glazing and façade bonding applications.
  • dow dowsil 7646 adhesive_0dcbe67a
  • dow dowsil 7646 adhesive_0dcbe67a

Features Of Dow DOWSIL 7646 Adhesive

  1. High-performance silicone adhesive offering excellent adhesion to diverse substrates including metals, plastics, and glass.

  2. Room-temperature vulcanizing (RTV) formulation enables rapid cure without heat or moisture sensitivity.

  3. Outstanding resistance to thermal cycling, UV exposure, and weathering for long-term outdoor reliability.

  4. Low modulus and high elongation provide superior stress relief in dynamic or thermally expanding assemblies.

  5. UL 94 HB rated and compliant with RoHS and REACH regulations for safe industrial use.

Typical Applications Of Dow DOWSIL 7646 Adhesive

  1. Automotive lighting assembly—including headlamp and taillamp bonding and sealing.

  2. Electronics encapsulation and gasketing for sensors, control units, and power modules.

  3. Architectural glazing and structural bonding of façade components in commercial buildings.

  4. Industrial appliance assembly requiring durable, vibration-resistant joints.

  5. Renewable energy applications such as solar panel frame sealing and junction box adhesion.

Specifications Of Dow DOWSIL 7646 Adhesive

Chemical TypeAcetoxy-cured silicone polymer
Product FormThixotropic paste, single-component
AppearanceOpaque white to off-white paste
Primary ApplicationsBonding, sealing, and gasketing in demanding industrial environments
Key FeaturesRTV cure, low modulus, high elongation, UV stable
BenefitsEliminates need for primers, reduces assembly time, extends service life
Storage Stability12 months at ≤25°C in unopened original packaging
Cure Speed (Surface Dry)Approx. 15–30 minutes at 23°C/50% RH


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