Remember seeing a thread about waterproofing feathers. Haven't posted in a while so thought I'de give the new site a shot and add a pic. I use silicone water proofing that I buy at Walmart. It is not in the pic but in the store it has a fl. orange cap which makes it easy to find. Once I spray the fletch I leave the arrows on our porch or in the garage for a night and the smell is gone once they dry. I works better than anything else I have tried and even if I get a pass thru on an animal the fletching has very little blood on them. In addition it seems to inhibit the mites that eat away at untreated feathers.