Pacific Fly Fishers Online Fly Shop & Catalog

This is pretty amazing stuff. Water Shed is a permantent waterproofing liquid that you can use to treat your dry flies prior to storing them in your fly boxes. Treat the flies, allow them to dry overnight, then put them in your boxes. They float like a cork the next time you use them. It is also amazing for pre-treating yarn indicators, or leaders, or just about anything else you may want to float!