[Phantom]

Heat guns can be bad I once bubbled/crackled the paint on a car at the dealership I worked at when removing a different dealers sticker. Luckily the car was an old used car that was priced at $5000 to sell. Not to bad a record though with removing over 100 stickers from cars and only slightly damaging the paint on 1.

The trick to keeping that from happening is do not stop moving the heat gun and do not heat small sections at a time, but I'm not sure how that works with the method above as I have not tried it. If I get around to trying it I will have to do an instructable on it.