I bought this to turn a fancy small mirror into a chalk board. I have a nice pool table/room and wanted a chalk board but didn't want an ugly metal rimmed chalkboard. I had a little mirror with a nice frame, removed the mirror from the frame, sprayed it with this and now I have a beautiful chalkboard in my pool room. I had plenty left so then I sprayed a couple of tin containers I had in my tool room. Now I can write what I have on the tins and if I change what's in them, I just wipe off the writing and write something else. If you have stupid kids that keep writing on the wall, just spray paint it and give them chalk. I doubt this stuff would be good on skin so don't really spray paint anyone.