How Should You Store Silicone Sealant After Use?
As air speeds up the drying process, you should prevent air from reaching the unused sealant in the tube or cartridge. One method to achieve this is to squeeze a small blob of sealant out to fill the tip of the nozzle, creating an air-tight seal. Next, you can either cover the whole nozzle with a plastic bag and secure it in place with a rubber band, or tape the tip-off tightly. Although these storage methods do not mean that the sealant will not dry out, it will greatly extend its shelf-life.