Placing finished Frosting Sheet into a VERY COLD FREEZER will allow easy removal after about 30-45 second, providing the freezer is a DRY freezer and not a WET freezer. This really works the best. You should remove the sheet immediately.
If you have trouble with applying:
Use a blower type HAIR dryer on the REVERSE SIDE of the backing sheet on high hot for 30-40 SECONDS. This method is very reliable and should solve your release problems.
It also works well if left in an Air-Conditioned area for a short time.
Pull backing sheet over the sharp edge of a tabletop.
REMEMBER: THE ONLY REASON THE FROSTING SHEETS WILL NOT EASILY COME OFF THE BACKING SHEET, IS THAT THE FROSTING SHEET IS STILL WET. THEY WILL RELEASE WHEN THEY ARE DRY.