DELO-GUM: Our silicone adhesive range for reliable and flexible bonding Sealants like DELO-GUM are available as one- and two-component products. Curing of our one-component silicone adhesives happens by way of moisture. Two-component DELO-GUM silicone glue cures in a matter of minutes – without requiring a humid environment. Thicker layers and extensive adhesion areas take a bit longer until they are fully cured.