Hydrostop permanently treats new flies with a floatant. Hundreds of flies can be treated, dozens at a time. Flies allowed to soak for 5 minutes and then dried overnight will float higher when they are used. Perfect for yarn-type indicators as well as pre-treating dubbing.

Remove cap. Fill container with dry flies, indicators, etc. Let soak for 5 minutes. Remove flies, indicator, etc and let dry overnight.

• Permanent waterproofing treatment for flies
• Large mouth container to treat dozens of flies at a time
• Great for waterproofing indicators, dubbing, etc