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

Dow DOWSIL Dry Seal E Silicone

Dow DOWSIL Dry Seal E Silicone is a high-performance, solvent-free, one-component RTV silicone sealant designed for demanding industrial sealing applications. It offers rapid moisture-cure adhesion to diverse substrates, excellent thermal stability (-40°C to 200°C), low compression set, and superior resistance to oils, fuels, and weathering—ideal for engine gasketing, automotive, and aerospace dry-seal requirements.
  • dow dowsil dry seal e silicone_8a53d065
  • dow dowsil dry seal e silicone_8a53d065

Features Of Dow DOWSIL Dry Seal E Silicone

  1. Ultra-low volatility formulation designed for clean, dry sealing without outgassing concerns in sensitive environments.

  2. Excellent adhesion to glass, aluminum, stainless steel, and common engineering plastics without primer.

  3. Fast skin-over time (<60 minutes) enabling rapid handling and reduced production cycle times.

  4. Wide service temperature range from –40 °C to +150 °C with retained elasticity and sealing integrity.

  5. Meets ASTM C920 Type S, Grade NS, Class 25 for structural silicone sealant performance.

Typical Applications Of Dow DOWSIL Dry Seal E Silicone

  1. Sealing of insulating glass units (IGUs) in architectural façades and curtain walls.

  2. Bonding and sealing of solar photovoltaic module frames and junction boxes.

  3. Hermetic sealing of electronic enclosures and LED lighting housings.

  4. Low-outgassing sealing for vacuum chambers and semiconductor manufacturing equipment.

  5. Weatherproofing of precision optical assemblies and medical device housings.

Specifications Of Dow DOWSIL Dry Seal E Silicone

Chemical TypeAcetoxy-cured silicone elastomer
Product FormOne-component, paste-like sealant in cartridge or sausage packaging
AppearanceOpaque white or translucent gray, smooth homogeneous paste
Primary ApplicationsStructural and non-structural dry-seal bonding in IGUs, electronics, and clean-tech assemblies
Key FeaturesLow VOC, primerless adhesion, fast surface cure, no plasticizer migration
BenefitsReduces contamination risk, eliminates secondary priming steps, supports automated dispensing
Shelf Life12 months unopened at ≤25 °C in original sealed packaging
Standards ComplianceASTM C920, ISO 11600 F25HM, UL 94 HB (as cured)


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