ok. ive done searched on and read every thread n post made on peel n seal but noone seems to answer my question. many poeple say its great but some still say it ***** and falls off. many responded to that, that u have to prep the surface well and use a heat gun to make it stick. if it does stick then my question is, does it produce any fumes from heat? cuz i dont wanna put it on and have all kinds of chemcal fumes in my car. please help me out. thanx.