Please note: This application method is the same for interior and exterior application. There is a common issue with glass application where the heat from your hands causes a layer of condensation to form between the glass and the sticker, making it not stick. This has nothing to do with the sticker not being sticky enough, it’s just that the sticker will not stick to wet glass. If you put your hand against the glass for a few seconds and remove it, you will see the condensation that it causes. To overcome this we suggest heating the area until the glass is warm to the touch so the chance for condensation to form is eliminated.