ExoAir® Primer is a VOC-compliant adhesive primer formulated for use with ExoAir 110/110LT and ExoAir TWF. It can be applied to common construction substrates using a brush or roller. ExoAir Primer is specifically formulated for use with the ExoAir line of air barrier systems, ensuring compatibility with all components required to create the full assembly. Once on the substrate, ExoAir Primer dries quickly, allowing work to proceed without delay.