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

Dow DOWSIL BY 24-903 Adhesive

Dow DOWSIL BY 24-903 Adhesive is a high-performance, two-part silicone adhesive sealant from Dow’s DOWSIL BY series. It offers excellent thermal stability, flexibility, and adhesion to diverse substrates including metals, plastics, and glass. Ideal for demanding industrial bonding and sealing applications requiring long-term reliability under extreme temperatures and environmental stress.
  • dow dowsil by 24 903 adhesive_bd7786c4
  • dow dowsil by 24 903 adhesive_bd7786c4

Features Of Dow DOWSIL BY 24-903 Adhesive

  1. High-performance silicone-based adhesive offering excellent flexibility and long-term durability under thermal cycling.

  2. Fast room-temperature cure with low modulus, minimizing stress on bonded substrates during expansion/contraction.

  3. Superior adhesion to challenging substrates including plastics, metals, glass, and painted surfaces without primers.

  4. Excellent resistance to moisture, UV radiation, and ozone—ideal for outdoor and demanding environmental exposure.

  5. Non-corrosive formulation compatible with sensitive electronic components and optical assemblies.

Typical Applications Of Dow DOWSIL BY 24-903 Adhesive

  1. LED lighting module assembly—including lens bonding and heat sink attachment.

  2. Automotive exterior trim and sensor housing bonding where vibration resistance and weatherability are critical.

  3. Consumer electronics enclosures and display bezel bonding requiring optical clarity and low-stress fixation.

  4. Solar photovoltaic module frame sealing and junction box adhesion in field-deployed systems.

  5. Industrial control panel overlays and membrane switch laminations requiring tactile reliability and environmental stability.

Specifications Of Dow DOWSIL BY 24-903 Adhesive

Chemical TypeAcetoxy-cure silicone elastomer
Product FormThixotropic paste, one-component
AppearanceOff-white to light gray, uniform paste
Primary ApplicationsBonding, sealing, and potting in electronics, automotive, and renewable energy
Key FeaturesRoom-temperature vulcanizing (RTV), low modulus, primerless adhesion
BenefitsReduced assembly time, minimized substrate stress, extended service life in harsh environments
Cure ByproductAcetic acid (mild vinegar odor during cure)
Shelf Life (unopened, 25°C)12 months in original sealed packaging


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