It's a top layer stain, like Eco-Flo antique gel. I bought it because it was the only prime shipping option on Amazon, but now that I've used it, I like it better than Eco-Flo. As far as coming off on peoples clothes etc. I haven't had that problem, but it may have happened. I top coat with Resolene, so maybe that helps. I mainly make instrument straps, bags Molded pouches and have never had any problem with rub-off.