So I bought a couple of rattle cans from Ace. As you can see on the test foam (standard foam board from Hobby Lobby), there was no issue with bubbling under the paper. Instructions say to keep 6-8 inches away, I was 8-12”. Light passes, probably 5 times each color. I learned if I’m going to hold the foam, put on a rubber glove... lol tape was stardard 3m scotch blue. No bleed under the tape.on the hard edge, the soft edge form the rip seemed to keep the paint out too.