Abstract: Embodiments relate to the application and storage of post-foaming compositions. One example includes a product including a deformable tube including a neck region at one end, the neck region defining an interior passage. The product also includes a cap configured to be coupled to and removed from the neck region. A post-foaming composition is contained in the tube and adapted to be delivered from the tube through the interior passage in the neck region upon the application of force to the tube. The cap includes a protuberance configured to extend into the interior passage when the cap is coupled to the neck region. Other embodiments are described and claimed.