What is the shelf life for TotalBoat Seal? Annette DiOrio December 08, 2021 20:32 Updated When sealed properly and stored at 70°F, TotalBoat Seal has a shelf life of 36 months. Related articles How long does TotalBoat Seal take to cure? Do I need to prime the surface before using TotalBoat Seal? Comments 0 comments Please sign in to leave a comment.