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

Dow DOWSIL BY 24-903 Silicone Adhesive

Dow DOWSIL BY 24-903 is a two-part addition-cure silicone adhesive offering excellent adhesion to metals, plastics and glass. It provides high thermal stability, low compression set and superior flexibility after curing. Ideal for bonding and sealing in automotive, electronics and industrial applications where reliability under thermal cycling is critical.
  • dow dowsil by 24 903 silicone adhesive_1984e4af
  • dow dowsil by 24 903 silicone adhesive_1984e4af

Features Of Dow DOWSIL BY 24-903 Silicone Adhesive

  1. High-performance, one-component, platinum-catalyzed addition-cure silicone adhesive.

  2. Excellent adhesion to a wide range of substrates including metals, plastics, and glass without primer.

  3. Outstanding thermal stability with continuous service temperature range from –60 °C to +200 °C.

  4. Low compression set and superior long-term elasticity for dynamic sealing and bonding applications.

  5. UL 94 HB rated for flammability; meets RoHS and REACH compliance requirements.

Typical Applications Of Dow DOWSIL BY 24-903 Silicone Adhesive

  1. Aerospace component bonding and vibration-damping assemblies.

  2. Automotive powertrain and sensor housing sealing under high-temperature exposure.

  3. Industrial electronics encapsulation and heat-sensitive device mounting.

  4. LED lighting module adhesion where thermal cycling resistance is critical.

  5. Medical device assembly requiring biocompatibility-supporting materials (ISO 10993 tested).

Specifications Of Dow DOWSIL BY 24-903 Silicone Adhesive

Chemical TypePlatinum-catalyzed addition-cure silicone
Product FormPaste, thixotropic, non-sag
AppearanceOpaque white to off-white paste
Primary ApplicationsBonding, sealing, and potting in demanding thermal and mechanical environments
Key FeaturesPrimerless adhesion, low outgassing, excellent electrical insulation
BenefitsReduced process steps, enhanced reliability, extended service life
Cure MechanismHeat-cured (typical: 150 °C for 30 minutes)
Shelf Life12 months at 25 °C in unopened original packaging


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