Extend the life of your adhesive and caulk tubes with the AirTite caulk preserver. If you are tired of wasting an entire tube of caulk or using flimsy plastic wrap to seal a tube, this caulk preserver seals up both the top and the bottom of an open tube to extend product life. It won’t crack or break if dropped, preventing spills or runs on car seats and work areas. You can also preserve roofing tar, sealants, and adhesives as well.