PRODUCT DESCRIPTION After hours of fly tying, why not get the mostout of your dry flies? With Hydrostop, you can permanently treat your new flies with a floatant. Coming in a conveniently large container you can treat hundreds of flies, dozens at a time. Simply soak your flies for 5 minutes and let dry overnight. Perfect for yarn-type indicators as well as pre-treating dubbing. Vendor: Loon Outdoors