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

Dow DOWSIL 734 Flowable Sealant Silicone Elastomer

Dow DOWSIL 734 Flowable Sealant is a one-component, acetoxy-cure silicone elastomer offering excellent flowability, adhesion to diverse substrates, and rapid room-temperature cure. Ideal for precision sealing, potting, and gap-filling in electronics and automotive applications. Features low viscosity, good thermal stability, and resistance to moisture and aging.
  • dow dowsil 734 flowable sealant silicone elastomer_17fa7be0
  • dow dowsil 734 flowable sealant silicone elastomer_17fa7be0

Features Of Dow DOWSIL 734 Flowable Sealant Silicone Elastomer

  1. Low-viscosity, flowable silicone formulation enabling excellent gap-filling and conformal coverage on complex geometries.

  2. Room-temperature vulcanizing (RTV) chemistry with rapid tack-free time and full cure within 24–72 hours under ambient conditions.

  3. Excellent adhesion to common substrates including metals, glass, ceramics, and many plastics—without primer.

  4. Broad service temperature range from –55 °C to +200 °C, maintaining elastomeric integrity and sealing performance.

  5. UL 94 HB rated for flame resistance and compliant with RoHS and REACH directives for industrial safety and sustainability.

Typical Applications Of Dow DOWSIL 734 Flowable Sealant Silicone Elastomer

  1. Sealing and potting of electronic components such as sensors, connectors, and power modules.

  2. Encapsulation of automotive lighting assemblies and under-hood electronics requiring thermal and vibration resistance.

  3. Gap-filling and moisture protection in HVAC and appliance control units.

  4. Conformal coating and edge-sealing of printed circuit boards (PCBs) in industrial automation systems.

  5. Non-structural bonding and sealing in medical device housings where biocompatibility and low outgassing are critical.

Specifications Of Dow DOWSIL 734 Flowable Sealant Silicone Elastomer

Chemical TypeRoom-Temperature Vulcanizing (RTV) Silicone Elastomer
Product FormFlowable liquid sealant, one-component
AppearanceOpaque white paste
Primary ApplicationsSealing, potting, encapsulation, and conformal protection
Key FeaturesLow viscosity, primerless adhesion, fast surface cure, high elongation
BenefitsReduced processing time, improved reliability, enhanced environmental resistance
Cure MechanismMoisture-curing (condensation type)
Storage Stability12 months unopened at 25 °C in original sealed container


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