Mounting License Plate

I am nearing the end of my build and I've begun wondering how others have mounted their license plate to the body of their teardrop in a way that the screw holes are sealed while still allowing removal and replacement of the plate later on? I am attaching the plate to the hatch, not the steel frame. It seems as though using a sealant like ProFlex in each of the holes would make it difficult to remove/replace the screws cleanly later on. Maybe I'm wrong in thinking this.
Thanks for the help!
Thanks for the help!