The Upper Edge cartridge plug is a must-have tool for extending the lifespan of silicones, adhesives, caulks, cement repair products, and more. By securely sealing the opening of any cartridge, it prevents air and moisture from entering, which helps to avoid the hardening or drying of materials. This effective solution ensures partially used cartridges stay fresh and usable for longer, reducing waste and improving efficiency. Perfect for DIY enthusiasts and professionals alike, the Upper Edge cartridge plug helps maintain product quality between uses.