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  Dow Corning  We help you invent the future.
Build A Better Barrier

The Dow Corning® Silicone Air Barrier System

The only water-based, 100% silicone air barrier on the market providing long-term performance backed by a system warranty. The easy-to-install system offers unlimited UV exposure and superior breathability.

Air and Water Protection for More Energy-Efficient Buildings

Design, build and renovate toward more sustainable, near-zero-energy buildings with this suite of compatible high-performance silicone products engineered to resist extreme environmental conditions. Features and benefits of the Dow Corning Silicone Air Barrier System include:
  • Simplified installation, can be rolled or sprayed on
  • PASS - NFPA 285 tested Assembly
  • Airtighness exceeding industry standards
  • Vapor permeable & breathable
  • Long-term UV resistance
  • Elastomeric, to accommodate building movement
  • Complete material compatibility
  • Expert technical support

Components of the Dow Corning® Silicone Air Barrier System

Window Graphic Dow Corning® DefendAir 200
100% liquid-applied (rolled or sprayed) seamless air and weather barrier suitable for use on many common wall substrates.

The Dow Corning® Silicone Transition System
High-performance, pre-cured 100% silicone rubber strips and corners used for sealing window-to-wall transitions.

Dow Corning® 758 Silicone Weather Barrier Sealant
A primerless solution to the challenge of sealing plastic and polyolefin-based window flashing, fenestration materials and building wraps.

Dow Corning® 791 Silicone Weatherproofing Sealant
A proven primerless performer providing robust adhesion to the Dow Corning® Silicone Air Barrier System.

Resources
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Learn More
Brochure
Dow Corning® Silicone Air Barrier System (PDF)
 
Specifications
Dow Corning® DefendAir 200 Air Barrier
Specification, Section 07 27 29

 
Application Guides
Dow Corning ® DefendAir 200 (PDF)
Dow Corning® Silicone Transition System (PDF)
 
Product Information Sheets
Dow Corning® DefendAir 200 (1MB PDF)
Dow Corning® 758 Silicone Weather Barrier Sealant (1MB PDF)
 
Videos
Dow Corning® Silicone AirBarrier System videoDow Corning® Silicone Air Barrier System Video
Dow Corning® Silicone AirBarrier System Dow Corning® Silicone Transition System
 

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