​ Gorilla 100% Silicone Sealants are flexible and mold and mildew resistant. These all weather, waterproof sealants are water ready in 30 minutes. Gorilla sealants are resilient and will not shrink or crack over time. Gorilla Glue sealants are a great solution for kitchens, bathrooms, plumbing, gutters, automobiles, marine, and more.