I went to an estate sale and bought a bag with 2 sails for $3 . One of them is a noisy ripstop nylon. I believe because of its lightness and noisy crinkles type sound this material is spinn.
My question, I was thinking of making a tarp with it. It would be multi colored, but something to practice with. I don't know if it is waterproof. Do I need to make a silicone with mineral sprits solution to waterproof it?