DOWSIL 791 Weatherproofing Sealant 20 x 500ml Sausage - Black

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DOWSIL™ 791 Weatherproofing Sealant is a one-part, medium-modulus, neutral-curing silicone elastomeric sealant for weathersealing applications. It is available in multiple colors and cures to form a flexible and durable silicone rubber weatherseal joint for the building.


  • General weathersealing joints
  • Glazing and curtain wall weathersealing joints
  • Building façade weathersealing joints


  • Ease of application – ready to use as supplied
  • Excellent rheology, low string upon gunning
  • Excellent weatherability, virtually unaffected by sunlight, rain, snow, ozone
  • Medium-modulus
  • ± 50% joint movement capability
  • Low odor