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Dow Corning 791 Sealant
Dow Corning 791 Sealant

Dow Corning 791 is a white coloured weatherproofing silicone sealant that offers superb unprimed adhesion to a variety of most porous and non-porous construction substrates including masonry, brickwork, timber, glass, PVC and most metals. Cartridge size: 310ml.




  • £8.99

  • £10.79

    inc VAT


TypeWeatherseal Silicone Sealant
Work Time20-30 minutes
Application temperature range-25 to +50°C

Features & Benefits

  • Highly flexible
  • Joint movement capability +/- 50%
  • Excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes
  • Conforms to ISO 11600-F&G-25LM and also meets ISO specification 9047 class 50%
  • 20-30 minutes working time
  • Fast cure – tack free in 2 hours
  • Application Temperature Range -25 to +50°C


For weathersealing of curtain walling, building facades and expansion joints. Also suitable for use as a frame sealant.
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