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DOWSIL™ DEFENDAIR™ 200C

A 100% silicone liquid applied Air and Weather Barrier designed to protect against air infiltration and water penetration. The vapor permeable, one component, water-based coating cures to form a flexible membrane that is impervious to water but has the ability to “breathe,” allowing water vapor to escape from inside the substrate.

  • DOWSIL™ DEFENDAIR 200 Primer
    A water-based silicone adhesion promoter developed to improve the adhesion of DOWSIL™ DefendAir 200 Air & Weather Barrier to properly prepared substrates.

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DOWSIL™ DEFENDAIR™ 200C
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DOWSIL™ DEFENDAIR™ 200C


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DOWSIL™ DEFENDAIR™ 200C
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