Sealing Your Sealant Tube

Even though you screw on the cap tightly, you might still find that a plug of silicone has dried in the nozzle of your tube of sealant. To avoid this, carefully scrape a blade across the nozzle to remove any excess sealant, put a small piece of clear plastic wrap over the end, flush against the sealant, and carefully squeeze out any air that’s trapped under the plastic. Then replace the cap as usual. Adapted...