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

Dow DOWSIL 7647 Adhesive

Dow DOWSIL 7647 Adhesive is a high-performance, platinum-cured silicone adhesive sealant offering excellent adhesion to diverse substrates including metals, plastics, and glass. It provides superior thermal stability, low compression set, and resistance to weathering and aging. Ideal for demanding industrial bonding and sealing applications requiring reliability under extreme conditions.
  • dow dowsil 7647 adhesive_94ea2c05
  • dow dowsil 7647 adhesive_94ea2c05

Features Of Dow DOWSIL 7647 Adhesive

  1. High-performance, one-component silicone adhesive with rapid room-temperature cure.

  2. Excellent adhesion to glass, aluminum, stainless steel, and many plastics without primer.

  3. Outstanding resistance to UV exposure, thermal cycling (-55 °C to +200 °C), and humidity.

  4. Low modulus formulation provides superior stress relief for bonded assemblies under thermal or mechanical strain.

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

Typical Applications Of Dow DOWSIL 7647 Adhesive

  1. Automotive lighting assemblies — bonding lenses to housings.

  2. Architectural glazing — structural and non-structural perimeter bonding of insulating glass units.

  3. Electronics enclosures — sealing and bonding of outdoor-rated housings and sensor modules.

  4. Appliance manufacturing — durable bonding of control panels, trim, and decorative overlays.

  5. Medical device assembly — biocompatibility-qualified bonding for non-implantable external equipment housings.

Specifications Of Dow DOWSIL 7647 Adhesive

Chemical TypeAcetoxy-cure silicone polymer
Product FormPaste, thixotropic, cartridge-ready
AppearanceOpaque white, smooth paste
Primary ApplicationsStructural and semi-structural bonding, sealing, and gasketing
Key FeaturesRoom-temperature vulcanizing (RTV), low shrinkage, no by-product corrosion
BenefitsReduced assembly time, improved long-term reliability, simplified processing vs. two-part systems
Cure MechanismMoisture-cured (surface-to-core)
Shelf Life (unopened)12 months at ≤25 °C in original sealed packaging


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