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

Dow DOWSIL SE 1771 Silicone

Dow DOWSIL SE 1771 Silicone is a high-performance, addition-cure liquid silicone rubber from Dow’s DOWSIL SE series. It offers excellent thermal stability, low compression set, and outstanding mechanical properties after curing. Ideal for precision molding of medical devices, seals, and automotive components requiring biocompatibility and USP Class VI compliance.
  • dow dowsil se 1771 silicone_1d952dd2
  • dow dowsil se 1771 silicone_1d952dd2

Features Of Dow DOWSIL SE 1771 Silicone

  1. One-component, moisture-curing silicone elastomer offering excellent adhesion to diverse substrates without primer.

  2. Low modulus and high elongation for superior stress relief in dynamic joint applications.

  3. Excellent resistance to UV radiation, ozone, and extreme temperature cycling (–55 °C to +180 °C).

  4. Good electrical insulation properties with stable dielectric performance over time.

  5. Low volatility and compliant with ASTM E84 Class A surface burning characteristics for fire-safe environments.

Typical Applications Of Dow DOWSIL SE 1771 Silicone

  1. Sealing and bonding of architectural curtain walls and façade systems.

  2. Joint sealing in precast concrete and structural glazing assemblies.

  3. Electrical enclosures and LED lighting housings requiring environmental protection.

  4. Transportation: bonding and sealing of bus, rail, and marine interior panels subject to vibration.

  5. Industrial equipment housings exposed to weathering and thermal cycling.

Specifications Of Dow DOWSIL SE 1771 Silicone

Chemical TypeAcetoxy-cure silicone elastomer
Product FormThixotropic paste, single-component
AppearanceOff-white to light gray, smooth uniform paste
Primary ApplicationsStructural and semi-structural sealing, bonding, and gasketing
Key FeaturesPrimerless adhesion, low modulus, high movement capability (±50%)
BenefitsReduced labor cost, long-term durability, minimal maintenance
Cure MechanismMoisture-cured at ambient temperature
Shelf Life9 months unopened at ≤25 °C in original sealed packaging


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