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

Dow DOWSIL 7645 Adhesive

Dow DOWSIL 7645 Adhesive is a high-performance, two-part silicone adhesive sealant from Dow’s DOWSIL™ portfolio. It delivers excellent adhesion to diverse substrates, thermal stability up to 200°C, low modulus elasticity, and rapid room-temperature cure. Ideal for demanding industrial bonding and sealing in electronics, automotive, and aerospace applications where reliability under extreme conditions is critical.
  • dow dowsil 7645 adhesive_9ce74dc7
  • dow dowsil 7645 adhesive_9ce74dc7

Features Of Dow DOWSIL 7645 Adhesive

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

  2. Wide service temperature range from −55 °C to 200 °C, maintaining integrity under thermal cycling.

  3. Low modulus formulation provides superior stress relief and damping for vibration-sensitive assemblies.

  4. Room-temperature curing with moisture-cure mechanism—no mixing or heat required for full cure.

  5. Excellent resistance to UV radiation, ozone, and weathering, supporting long-term outdoor durability.

Typical Applications Of Dow DOWSIL 7645 Adhesive

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

  2. Electronics encapsulation and potting of sensors, connectors, and power modules.

  3. Industrial bonding of nameplates, trim, and decorative panels on metal and painted surfaces.

  4. Renewable energy applications such as solar panel frame attachment and junction box sealing.

  5. Medical device assembly requiring biocompatibility-compliant, low-outgassing adhesives.

Specifications Of Dow DOWSIL 7645 Adhesive

Chemical TypeAcetoxy-cure silicone polymer
Product FormThixotropic paste in cartridge or bulk container
AppearanceOff-white to light gray, homogeneous paste
Primary ApplicationsBonding, sealing, and gasketing in demanding industrial environments
Key FeaturesNon-corrosive cure, low shrinkage, excellent gap-filling capability
BenefitsReduces need for primers; compatible with automated dispensing systems
Cure MechanismMoisture-cure at ambient conditions
Shelf Life (unopened)12 months at ≤25 °C in original sealed packaging


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