Z-Poxy is the best epoxy to use on flies. It doesn’t discolor at the rate of any other epoxy. We use it to epoxy clear baitfish heads like the Eat Me Fly. Hit a touch of it on the back of nymph cases to make them glisten. The 5-minute is best on individual flies while the 30-minute works best on batches of flies or custom rod work. It’s the strongest bond of any adhesive we carry.