Getting my heads and cylinders ready for powder coating using easy-off. It's taking off the black paint they put on it at the factory and it started looking ready to send out. So I shot it again with cleaner and let sit overnight but I forgot about it and when I cleaned it off and it looks dark and it won't come off unless you sand it or Dremel it off. Anybody know what's going on with this and how to get it off? Would be pretty tough to get to the fins cleaned out. Hopefully there's a easier way. Thanks guys