ExoAir Flex Foam

Flexible, Low-Expansion Polyurethane Foam

ExoAir® Flex is a single-component, high performance, gun-grade polyurethane flexible foam that performs as a thermal barrier. With an industry leading movement range of +/-15% (Movement Accommodation Factor of 30%), ExoAir Flex, part of the T3 Building Solutions System, protects against thermal expansion and contraction. ExoAir Flex is CFC-free and can be applied over a wide temperature range, making it a reliable, fourseason solution.


  • ExoAir Flex is best suited as a thermal and sound barrier to be used in the perimeters around windows and doors
  • The recommended application temperature is from 27 to 95 °F (-3 to 35 °C)