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

Dow DOWSIL 734 Flowable Sealant

Dow DOWSIL 734 Flowable Sealant is a one-component, acetoxy-cured silicone elastomer offering excellent flowability, adhesion to diverse substrates, and rapid room-temperature cure. Ideal for potting, sealing, and gap-filling in electronics and industrial applications, it delivers low viscosity, thermal stability, and moisture resistance without shrinkage or cracking.
  • dow dowsil 734 flowable sealant_e23cd32d
  • dow dowsil 734 flowable sealant_e23cd32d

Features Of Dow DOWSIL 734 Flowable Sealant

  1. Room-temperature vulcanizing (RTV) silicone sealant with excellent flowability for precision dispensing and gap filling.

  2. Low modulus formulation provides superior flexibility and stress relief in dynamic or thermally cycling assemblies.

  3. Excellent adhesion to common substrates including glass, aluminum, stainless steel, and many plastics without primer.

  4. UL 94 HB rated for flammability resistance and meets RoHS compliance for restricted substances.

  5. Non-corrosive cure chemistry—acetoxy-free—making it safe for sensitive electronic and optical components.

Typical Applications Of Dow DOWSIL 734 Flowable Sealant

  1. Sealing and bonding of LED lighting housings and lens interfaces.

  2. Encapsulation and edge sealing of automotive sensors and control modules.

  3. Moisture protection for PCBs, connectors, and power electronics in industrial equipment.

  4. Gap-filling and sealing in architectural glazing systems and façade components.

  5. Assembly of medical device enclosures requiring biocompatibility-supporting materials and clean processing.

Specifications Of Dow DOWSIL 734 Flowable Sealant

Chemical TypeAcetoxy-cure silicone elastomer
Product FormFlowable paste, single-component
AppearanceOpaque white or translucent beige paste
Primary ApplicationsSealing, bonding, and environmental protection in electronics, automotive, and architectural applications
Key FeaturesRTV, low modulus, flowable, primerless adhesion, non-corrosive cure
BenefitsReduces assembly stress, enables automated dispensing, improves long-term reliability under thermal cycling
Cure MechanismMoisture-cured at ambient temperature
Storage Stability12 months unopened at ≤25°C in original sealed packaging


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