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  1. Página Inicial
  2. Edificação, Construção e Infraestrutura
  3. Sustainable Building Envelope
  4. Build a Better Barrier™

Build a Better Barrier™

DOWSIL™ Silicone Air Barrier System offers better building performance

High-performance buildings demand exceptional protection. Design with confidence using the DOWSIL™ Silicone Air Barrier System – a variety of silicone technologies that help you build a better barrier to protect the building envelope from air, water and vapor in both renovation and new construction.

A cross-section of a building wall showing the installation of Dow Corning® DefendAir 200

The system’s key benefits include:

  • Improved energy efficiency and durability
  • Airtight performance that exceeds industry standards across a wide range of temperatures 
  • Long-term UV resistance and enhanced weatherproofing
  • Water-based, low-VOC formulation 
  • Vapor-permeable and breathable
  • Primerless adhesion to even the most challenging construction substrates

DOWSIL Silicone Air Barrier System offers better building performance

Learn more about a compatible system that protects buildings from air, water and vapor

 

The DOWSIL™ Silicone Air Barrier System’s complete offering of compatible accessory materials includes:

DEFENDAIR™ 200C Air and Weather Barrier Coating, a 100 percent silicone liquid-applied air and weather barrier designed to protect against uncontrolled air infiltration and water penetration.

DEFENDAIR™ 200 Primer, a water-based silicone adhesion promoter developed to improve the adhesion of DEFENDAIR™ 200C Air and Weather Barrier Coating.

DOWSIL™ Silicone Transition System (STS) a preformed silicone strip and molded pieces designed for flashing and transition applications to weatherproof against air and water infiltration.

DOWSIL™ Silicone Transition Strips and DOWSIL™ Silicone Transition Corners, high-performance, precured, 100 percent silicone rubber strips and corners designed to simplify installation and ensure continuous airtight transition from the window to the wall.

DOWSIL™ 758 Silicone Weather Barrier Sealant, a neutral, one-part silicone sealant designed to adhere to even the most demanding substrates without a primer.

DOWSIL™ 791 Silicone Weatherproofing Sealant, a one-part, medium-modulus, neutral-curing silicone sealant for general weathersealing applications that is optimal for adhering STS to DEFENDAIR™ 200C Air and Weather Barrier Coating.

DOWSIL™ 778 Silicone Liquid Flashing, a one-part, liquid silicone flashing that can be trowel-applied to weatherproof at window and door openings and other through-cavity penetrations.


Explore our resources to learn what gives the DOWSIL™ Silicone Air Barrier System the potential to outperform current air barrier industry standards.