What type of shaving cream do you use I've never heard of this but its got my interest. Like Dan mentioned it will probably leave a film behind which you could clean with iso alcohol 95% or better, but then that will also work to remove the glue . If you have something in shaving cream that doesn't have a lubricant in it then that might work but then it would make an awful shaving cream . Whatever you use to clean the screen needs to be completely gone when done so that the new glue will adhere to the screen. Let me know how it turns out for you . Just curious