With an industry leading movement range of +/-15% (Movement Accommodation Factor of 30%), ExoAir® Flex Foam is a CFC-free, single-component, high-performance, gun-grade polyurethane flexible foam that performs as a thermal barrier. Flex Foam can be applied over a wide temperature range, making it a reliable, four-season solution that will change the way perimeters of doors and windows are sealed. It has minimal expansion and low pressure, so windows won’t bow or wrap. Its non-rigid composition is highly flexible and won’t crack. ExoAir Flex Foam is closed cell, so it won’t absorb water; it can be trimmed or cut in 45 minutes.ExoAir Flex Foam is part of the T3 Building Solutions System, which protects against thermal expansion and contraction and other movements. This product will gain satisfactory adhesion to most window and other common building materials. Offering flexibility and superior overall performance, ExoAir Flex Foam is a better alternative for applications where there is anticipated movement versus the ExoAir LEF® (or standard spray foams) that are a non-flexible composition. Other expanding PU foams are rigid and will split, crack, and shrink over time. This creates gaps, cracks, and holes that allow air movement and moisture penetration.ExoAir Flex Foam has been tested in accordance with AAMA 812 and ASTM D2842 industry standard test methods.
ExoAir Flex Foam is available to all United States and Canadian customers in white(700-ml can, gun grade).