Serious question OK? Could you use Scotch guard to waterproof feathers?? Has anyone tried??
That's what I use.
I have and still use it, It works very well!! The stuff is scotch guard for outdoors if I remember right! I need to get some more for this coming fall!! I usually treat feathers the end of aug or early sept just to make sure the smell is gone! But it only takes a week for the smell to go away!! Test an arrow first to make sure it wont react with your fletch glue!
Been using it for a long time and it works very well.
I have been using fletch tape no reaction there.
DD