Dow Corning 791

Product Description

Dow Corning® 791 Silicone Weatherproofing Sealant is a one-part, neutral cure, architectural grade sealant. It easily extrudes in any weather and cures at ambient temperature by reaction with moisture in the air to form a durable, flexible silicone rubber seal.

Areas of Use

Dow Corning® 791 Silicone Weatherproofing Sealant is a specified, premium performance weather sealing product specifically designed for general glazing and weather sealing in curtain wall and building facades.


  • Ideal for expansion, connection, perimeter and other movement joint
  • Neutral cure – suitable for use on coated glass, galvanized steel, masonry and other porous and nonporous substrates
  • Extension/compression movement capability of up to ±50 percent of the original joint width

Available Colours

This product is available in 6 colors:

  • Black
  • Grey
  • Bronze
  • Limestone
  • Precast white
  • White

Please contact APTC Australia as your local Technical Dow Corning Supplier for availability.

Technical Data Sheet

Request Material Safety Data Sheet

Call us on 1300 394 239

Monday to Friday

7:30am to 4:30pm