WEST SENECA, N.Y. – Kemper System America, Inc. now offers Wall Guardian^® FW-100A, a liquid-applied fibered acrylic air barrier that also acts as a water/weather barrier and vapor retarder. Evaluated by the Air Barrier Association of America (ABAA), it delivers superior air barrier performance – and value.

Wall Guardian FW-100A exceeds ASTM E2357 (Standard Test Method for Determining Air Leakage of Air Barrier Assemblies) with an air leakage rate of just 0.0004 cfm/ft² @ 1.57 psf – 100 times better than the test requirement. Notably, the liquid-applied air barrier exceeded the standard in a single coat at 40 mils wet film thickness (40 sq. ft. per gallon). This makes it one of the lowest installed-cost air barrier systems in the U.S.

The engineered system is designed to resist air and water infiltration, saving energy and preventing moisture build-up that can lead to mildew and mold. Compared to house wraps and mechanically-fastened weather barriers, Wall Guardian FW-100A can be quickly applied to building material surfaces with a heavy-duty sprayer, roller or brush.

The liquid-applied air barrier offers unified substrate protection, even on curved or other unconventionally shaped walls. The water-based coating is a very-low VOC product and meets LEED intent at 25 percent recycled content. The applied coating is also Class A fire rated.

In addition to Wall Guardian FW-100A, Kemper System also offers related air barrier component products through its STS Coatings line acquired in 2016. These include GreatSeal^® LT-100 polyether Liquid Tape for board-to-board joints, windows, doors, masonry, roof flashings, etc., and UT-40 Universal Tape^® for quickly sealing cracks, transitions, penetrations and seams in exterior substrate and insulation board.

For more information, visit www.kempersystem.net.