Clear urethane, non-toxic, 100% waterproof, fast drying, Liquid Fusion fly tying glue thins with water, and you can make it any consistency you like. As is out of the bottle for coating shrimp backs, nymph wing cases, reinforcing fragile feathers, thinning for a deep penetrating head cement, dries clear and glossy just like epoxy without the hassle of mixing. A fly turning wheel is recommended for coating large saltwater heads or bodies. Dry time 2 hrs. 2-oz. squeeze bottle.