Get ready to tackle your next project by using the Great Stuff Big Gap Filler. This formula can be used in order to fill gaps that are larger than 1". The insulating foam sealant is a helpful choice for creating larger weather-tight seals to stop drafts and keep critters out. Once in place, it will be airtight, paintable, stainable and sandable. The versatile formula is useful for a variety of different jobs. It is polyurethane-based and suited for use on a variety of materials. Using this product can help you avoid having to do more work in order to fix a space, crack or gap. It comes in a can that contains 12 oz. It is capable of doing what would take a large amount of caulk to do. The Great Stuff Big Gap Filler is designed to be easy to use and can be applied by professionals as well as amateurs.