Thanks for the info I think I’m going to give it a go!Yes, to both. I used 4 coats/applications of black dye to make sure I had full coverage. Then CPR, then blackrocks. Took a couple days. This little bottle of Kiwi shoe dye has a sponge applicator top. You just squeeze (gently--I made the mistake of too hard) and then rub the sponge on the bag. Avoid bubbles, smooth them out.I was concerned that the dye would come off when I used those products, but, no. It's a good dye.