Aquaseal is like duct tape. It is a must have for fixing just about anything. It is most often used for patching leaks in waders of any type - Gortex, other breathable materials, neoprene, Supplex, and the old rubber waders. Aquaseal is also handy for some fly tying applications, is great for splicing lines together, and will glue that spot where your felt is separating from your wading shoes. Drying time is about 12 hours. 0.75 ounce.