It's called BodyShutz. You get it from a bodyshop supply store. It comes with it's own applicator with a large nozzle. It's not cheap. You can't use spray can stuff, it isn't thick enough - if you want it PERFECT. Otherwise, use that stuff and put on MANY coats over a several hour period. You can build it up soemwhat close, just not perfect. Make sure you MASK off everything else or you'll have it EVERYWHERE!