I had no heat gun or hair dryer. The tool I used in the beginning was a fishing line, but that was tough and took forever. So about a third of the way into it I used a plastic spatula and pried it off. I did that for both sides and had some residual glue which i very carefully removed with a fiber cloth and some windex. I bet you that if you have a heat gun, the fishing line would have worked like a charm. Good Luck.