.....for my knowledge base will the oil based polys from the other folks like Minwax Helmsmans Spar or Sherwin Williams products (so long as they are oil based) also work on the nylon?
Have any of you guys used any of the others products on nylon?
I don't know if either of those will work. But given how few products do I would be hesitant to try it.
Check the Do-it-best hardware web site. They sell it and will ship to a local D-I-B hardware store and you can pick up there. I got my last gallon that way. I have found it online too but I don't remember where. It can mailed but it just has to on the ground, by truck. They will not put it on a plane.
Another product that worked really well for me is Dura-Tuff. You will have to mail order it because it is very hard to find, but it tough! It's water clear and I prefer to spray it but I see no reason it couldn't be brushed. You will have to have good ventilation because it is strong product! I wear a respirator when I use it.